Home / 12,880-20,472

Finding the Third Proportional to 12,880 and 20,472

Calculator

Solution

The third proportional to 12,880 and 20,472 is: 32,539.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,880 : 20,472 = 20,472 : x
  2. Step 2: Convert to fraction form
    12,880/20,472 = 20,472/x
  3. Step 3: Cross multiply
    12,880x = 20,472 × 20,472
  4. Step 4: Simplify right side
    12,880x = 419,102,784
  5. Step 5: Solve for x
    x = 419,102,784/12,880
  6. Step 6: Final answer
    x = 32,539.04

Related Problems

Find third proportional to 6,440 and 10,236
Half scale
Find third proportional to 25,760 and 40,944
Double scale
Find third proportional to 12,882 and 20,475
Similar ratio
Find third proportional to 19,320 and 30,708
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.59) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.