Home / 31,981.34-47,972.02-9,794.64

Finding the Fourth Proportional to 31,981.34, 47,972.02 and 9,794.64

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Solution

The fourth proportional to 31,981.34, 47,972.02 and 9,794.64 is: 14,691.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,981.34 : 47,972.02 = 9,794.64 : x
  2. Step 2: Convert to fraction form
    31,981.34/47,972.02 = 9,794.64/x
  3. Step 3: Cross multiply
    31,981.34x = 47,972.02 × 9,794.64
  4. Step 4: Simplify right side
    31,981.34x = 469,868,665.97
  5. Step 5: Solve for x
    x = 469,868,665.97/31,981.34
  6. Step 6: Final answer
    x = 14,691.96

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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.