21.83 is what percent of 87.32 - step by step solution

To get the solution, we are looking for, we need to point out what we know.

1. We assume, that the number 87.32 is 100% - because it's the output value of the task.
2. We assume, that x is the value we are looking for.
3. If 100% equals 87.32, so we can write it down as 100%=87.32.
4. We know, that x% equals 21.83 of the output value, so we can write it down as x%=21.83.
5. Now we have two simple equations:
1) 100%=87.32
2) x%=21.83
where left sides of both of them have the same units, and both right sides have the same units, so we can do something like that:
100%/x%=87.32/21.83
6. Now we just have to solve the simple equation, and we will get the solution we are looking for.

7. Solution for 21.83 is what percent of 87.32

100%/x%=87.32/21.83
(100/x)*x=(87.32/21.83)*x       - we multiply both sides of the equation by x
100=4*x       - we divide both sides of the equation by (4) to get x
100/4=x
25=x
x=25

now we have:
21.83 is 25% of 87.32