Home / 40,781.80-56,280.90-22,875.88

Finding the Fourth Proportional to 40,781.80, 56,280.90 and 22,875.88

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Solution

The fourth proportional to 40,781.80, 56,280.90 and 22,875.88 is: 31,569.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,781.80 : 56,280.90 = 22,875.88 : x
  2. Step 2: Convert to fraction form
    40,781.80/56,280.90 = 22,875.88/x
  3. Step 3: Cross multiply
    40,781.80x = 56,280.90 × 22,875.88
  4. Step 4: Simplify right side
    40,781.80x = 1,287,475,114.69
  5. Step 5: Solve for x
    x = 1,287,475,114.69/40,781.80
  6. Step 6: Final answer
    x = 31,569.85

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.