Home / 31,880.06-47,821.79-9,691.73

Finding the Fourth Proportional to 31,880.06, 47,821.79 and 9,691.73

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Solution

The fourth proportional to 31,880.06, 47,821.79 and 9,691.73 is: 14,538.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,880.06 : 47,821.79 = 9,691.73 : x
  2. Step 2: Convert to fraction form
    31,880.06/47,821.79 = 9,691.73/x
  3. Step 3: Cross multiply
    31,880.06x = 47,821.79 × 9,691.73
  4. Step 4: Simplify right side
    31,880.06x = 463,475,876.80
  5. Step 5: Solve for x
    x = 463,475,876.80/31,880.06
  6. Step 6: Final answer
    x = 14,538.11

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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.