Home / 31,988.39-47,982.85-12,262.25

Finding the Fourth Proportional to 31,988.39, 47,982.85 and 12,262.25

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Solution

The fourth proportional to 31,988.39, 47,982.85 and 12,262.25 is: 18,393.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,988.39 : 47,982.85 = 12,262.25 : x
  2. Step 2: Convert to fraction form
    31,988.39/47,982.85 = 12,262.25/x
  3. Step 3: Cross multiply
    31,988.39x = 47,982.85 × 12,262.25
  4. Step 4: Simplify right side
    31,988.39x = 588,377,791.71
  5. Step 5: Solve for x
    x = 588,377,791.71/31,988.39
  6. Step 6: Final answer
    x = 18,393.48

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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.