[Not drama] Bare minimum wealth for a decent quality of life?

So being the sperg that I am I was going through the list of all the countries globally in terms of GDP per capita and the question that came to mind was what's the minimum annual income a person needs to live a decent life?

Going through the list for the third world countries I feel like a decent bottom line GDP per capita where literally everyone can survive with a roof over their heads is around 4000 USD per annum.

So I figure that the world will no longer hunger or suffer when the poorest country in the world has crossed 4000 USD per capita.

Currently the poorest region in the world is the Central African Republic with a GDP per capita of 663 USD per capita.

Now I used a compound interest calculator for this, but assuming a growth rate of 6% per year, it would take the poorest country in the world 31 years to cross the 4000 USD per annum mark.

Of course we also have to account for the fact that as more countries come out of poverty or become wealthy the remaining funding can be focused on a smaller group of nations which may speed things up.

Countries such as Mexico, UAE, Russia, for example are likely to become developed nations within the coming decades. This gives us more countries with wealth to spread to poorer areas.

So taking all these factors into account, in my opinion poverty will be ended globally by around 2040, ten years later than the UN set goals.

What do you guys think?