21.58 is what percent of 20.66 - 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 20.66 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 20.66, so we can write it down as 100%=20.66.
4. We know, that x% equals 21.58 of the output value, so we can write it down as x%=21.58.
5. Now we have two simple equations:
1) 100%=20.66
2) x%=21.58
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%=20.66/21.58
6. Now we just have to solve the simple equation, and we will get the solution we are looking for.

7. Solution for 21.58 is what percent of 20.66

100%/x%=20.66/21.58
(100/x)*x=(20.66/21.58)*x       - we multiply both sides of the equation by x
100=0.95736793327155*x       - we divide both sides of the equation by (0.95736793327155) to get x
100/0.95736793327155=x
104.45304937076=x
x=104.45304937076

now we have:
21.58 is 104.45304937076% of 20.66