Home / 17,720-38,896

Finding the Third Proportional to 17,720 and 38,896

Calculator

Solution

The third proportional to 17,720 and 38,896 is: 85,378.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,720 : 38,896 = 38,896 : x
  2. Step 2: Convert to fraction form
    17,720/38,896 = 38,896/x
  3. Step 3: Cross multiply
    17,720x = 38,896 × 38,896
  4. Step 4: Simplify right side
    17,720x = 1,512,898,816
  5. Step 5: Solve for x
    x = 1,512,898,816/17,720
  6. Step 6: Final answer
    x = 85,378.04

Related Problems

Find third proportional to 8,860 and 19,448
Half scale
Find third proportional to 35,440 and 77,792
Double scale
Find third proportional to 17,722 and 38,900
Similar ratio
Find third proportional to 26,580 and 58,344
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.