Home / 20,599-31,979

Finding the Third Proportional to 20,599 and 31,979

Calculator

Solution

The third proportional to 20,599 and 31,979 is: 49,645.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,599 : 31,979 = 31,979 : x
  2. Step 2: Convert to fraction form
    20,599/31,979 = 31,979/x
  3. Step 3: Cross multiply
    20,599x = 31,979 × 31,979
  4. Step 4: Simplify right side
    20,599x = 1,022,656,441
  5. Step 5: Solve for x
    x = 1,022,656,441/20,599
  6. Step 6: Final answer
    x = 49,645.93

Related Problems

Find third proportional to 10,299.50 and 15,989.50
Half scale
Find third proportional to 41,198 and 63,958
Double scale
Find third proportional to 20,601 and 31,982
Similar ratio
Find third proportional to 30,898.50 and 47,968.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.