Home / 47,468.12-71,206.28-12,407.76

Finding the Fourth Proportional to 47,468.12, 71,206.28 and 12,407.76

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Solution

The fourth proportional to 47,468.12, 71,206.28 and 12,407.76 is: 18,612.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,468.12 : 71,206.28 = 12,407.76 : x
  2. Step 2: Convert to fraction form
    47,468.12/71,206.28 = 12,407.76/x
  3. Step 3: Cross multiply
    47,468.12x = 71,206.28 × 12,407.76
  4. Step 4: Simplify right side
    47,468.12x = 883,510,432.73
  5. Step 5: Solve for x
    x = 883,510,432.73/47,468.12
  6. Step 6: Final answer
    x = 18,612.71

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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.