Home / 18,558-38,938.50

Finding the Third Proportional to 18,558 and 38,938.50

Calculator

Solution

The third proportional to 18,558 and 38,938.50 is: 81,700.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,558 : 38,938.50 = 38,938.50 : x
  2. Step 2: Convert to fraction form
    18,558/38,938.50 = 38,938.50/x
  3. Step 3: Cross multiply
    18,558x = 38,938.50 × 38,938.50
  4. Step 4: Simplify right side
    18,558x = 1,516,206,782.25
  5. Step 5: Solve for x
    x = 1,516,206,782.25/18,558
  6. Step 6: Final answer
    x = 81,700.98

Related Problems

Find third proportional to 9,279 and 19,469.25
Half scale
Find third proportional to 37,116 and 77,877
Double scale
Find third proportional to 18,560 and 38,943
Similar ratio
Find third proportional to 27,837 and 58,407.75
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.10) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.