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Finding the Fourth Proportional to 47,953.92, 71,930.88 and 20,252.16

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Solution

The fourth proportional to 47,953.92, 71,930.88 and 20,252.16 is: 30,378.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,953.92 : 71,930.88 = 20,252.16 : x
  2. Step 2: Convert to fraction form
    47,953.92/71,930.88 = 20,252.16/x
  3. Step 3: Cross multiply
    47,953.92x = 71,930.88 × 20,252.16
  4. Step 4: Simplify right side
    47,953.92x = 1,456,755,690.70
  5. Step 5: Solve for x
    x = 1,456,755,690.70/47,953.92
  6. Step 6: Final answer
    x = 30,378.24

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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.