Home / 47,691.28-71,538.29-12,630.94

Finding the Fourth Proportional to 47,691.28, 71,538.29 and 12,630.94

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Solution

The fourth proportional to 47,691.28, 71,538.29 and 12,630.94 is: 18,946.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,691.28 : 71,538.29 = 12,630.94 : x
  2. Step 2: Convert to fraction form
    47,691.28/71,538.29 = 12,630.94/x
  3. Step 3: Cross multiply
    47,691.28x = 71,538.29 × 12,630.94
  4. Step 4: Simplify right side
    47,691.28x = 903,595,654.06
  5. Step 5: Solve for x
    x = 903,595,654.06/47,691.28
  6. Step 6: Final answer
    x = 18,946.77

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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.