Home / 20,000-31,629

Finding the Third Proportional to 20,000 and 31,629

Calculator

Solution

The third proportional to 20,000 and 31,629 is: 50,019.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,000 : 31,629 = 31,629 : x
  2. Step 2: Convert to fraction form
    20,000/31,629 = 31,629/x
  3. Step 3: Cross multiply
    20,000x = 31,629 × 31,629
  4. Step 4: Simplify right side
    20,000x = 1,000,393,641
  5. Step 5: Solve for x
    x = 1,000,393,641/20,000
  6. Step 6: Final answer
    x = 50,019.68

Related Problems

Find third proportional to 10,000 and 15,814.50
Half scale
Find third proportional to 40,000 and 63,258
Double scale
Find third proportional to 20,002 and 31,632
Similar ratio
Find third proportional to 30,000 and 47,443.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.58) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.