Home / 20,904-29,871

Finding the Third Proportional to 20,904 and 29,871

Calculator

Solution

The third proportional to 20,904 and 29,871 is: 42,684.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,904 : 29,871 = 29,871 : x
  2. Step 2: Convert to fraction form
    20,904/29,871 = 29,871/x
  3. Step 3: Cross multiply
    20,904x = 29,871 × 29,871
  4. Step 4: Simplify right side
    20,904x = 892,276,641
  5. Step 5: Solve for x
    x = 892,276,641/20,904
  6. Step 6: Final answer
    x = 42,684.49

Related Problems

Find third proportional to 10,452 and 14,935.50
Half scale
Find third proportional to 41,808 and 59,742
Double scale
Find third proportional to 20,906 and 29,874
Similar ratio
Find third proportional to 31,356 and 44,806.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.43) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.