0.21 is what percent of 12.43 - 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 12.43 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 12.43, so we can write it down as 100%=12.43.
4. We know, that x% equals 0.21 of the output value, so we can write it down as x%=0.21.
5. Now we have two simple equations:
1) 100%=12.43
2) x%=0.21
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%=12.43/0.21
6. Now we just have to solve the simple equation, and we will get the solution we are looking for.

7. Solution for 0.21 is what percent of 12.43

100%/x%=12.43/0.21
(100/x)*x=(12.43/0.21)*x       - we multiply both sides of the equation by x
100=59.190476190476*x       - we divide both sides of the equation by (59.190476190476) to get x
100/59.190476190476=x
1.6894609814964=x
x=1.6894609814964

now we have:
0.21 is 1.6894609814964% of 12.43