Home / 47,446.88-71,171.60-12,385.76

Finding the Fourth Proportional to 47,446.88, 71,171.60 and 12,385.76

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Solution

The fourth proportional to 47,446.88, 71,171.60 and 12,385.76 is: 18,578.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,446.88 : 71,171.60 = 12,385.76 : x
  2. Step 2: Convert to fraction form
    47,446.88/71,171.60 = 12,385.76/x
  3. Step 3: Cross multiply
    47,446.88x = 71,171.60 × 12,385.76
  4. Step 4: Simplify right side
    47,446.88x = 881,514,356.42
  5. Step 5: Solve for x
    x = 881,514,356.42/47,446.88
  6. Step 6: Final answer
    x = 18,578.97

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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.