21.12 is what percent of 26.6 - 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 26.6 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 26.6, so we can write it down as 100%=26.6.
4. We know, that x% equals 21.12 of the output value, so we can write it down as x%=21.12.
5. Now we have two simple equations:
1) 100%=26.6
2) x%=21.12
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%=26.6/21.12
6. Now we just have to solve the simple equation, and we will get the solution we are looking for.

7. Solution for 21.12 is what percent of 26.6

100%/x%=26.6/21.12
(100/x)*x=(26.6/21.12)*x       - we multiply both sides of the equation by x
100=1.2594696969697*x       - we divide both sides of the equation by (1.2594696969697) to get x
100/1.2594696969697=x
79.398496240602=x
x=79.398496240602

now we have:
21.12 is 79.398496240602% of 26.6