Home / 42,491.54-63,737.28-12,909.26

Finding the Fourth Proportional to 42,491.54, 63,737.28 and 12,909.26

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Solution

The fourth proportional to 42,491.54, 63,737.28 and 12,909.26 is: 19,363.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,491.54 : 63,737.28 = 12,909.26 : x
  2. Step 2: Convert to fraction form
    42,491.54/63,737.28 = 12,909.26/x
  3. Step 3: Cross multiply
    42,491.54x = 63,737.28 × 12,909.26
  4. Step 4: Simplify right side
    42,491.54x = 822,801,119.21
  5. Step 5: Solve for x
    x = 822,801,119.21/42,491.54
  6. Step 6: Final answer
    x = 19,363.88

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.