22 is what percent of 1989 - 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 1989 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 1989, so we can write it down as 100%=1989.
4. We know, that x% equals 22 of the output value, so we can write it down as x%=22.
5. Now we have two simple equations:
1) 100%=1989
2) x%=22
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%=1989/22
6. Now we just have to solve the simple equation, and we will get the solution we are looking for.

7. Solution for 22 is what percent of 1989

100%/x%=1989/22
(100/x)*x=(1989/22)*x       - we multiply both sides of the equation by x
100=90.409090909091*x       - we divide both sides of the equation by (90.409090909091) to get x
100/90.409090909091=x
1.1060834590246=x
x=1.1060834590246

now we have:
22 is 1.1060834590246% of 1989