Home / 47,691.69-71,537.51-12,631.35

Finding the Fourth Proportional to 47,691.69, 71,537.51 and 12,631.35

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Solution

The fourth proportional to 47,691.69, 71,537.51 and 12,631.35 is: 18,947.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,691.69 : 71,537.51 = 12,631.35 : x
  2. Step 2: Convert to fraction form
    47,691.69/71,537.51 = 12,631.35/x
  3. Step 3: Cross multiply
    47,691.69x = 71,537.51 × 12,631.35
  4. Step 4: Simplify right side
    47,691.69x = 903,615,263.78
  5. Step 5: Solve for x
    x = 903,615,263.78/47,691.69
  6. Step 6: Final answer
    x = 18,947.02

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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.