Home / 31,982.18-47,945.91-12,274.88

Finding the Fourth Proportional to 31,982.18, 47,945.91 and 12,274.88

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Solution

The fourth proportional to 31,982.18, 47,945.91 and 12,274.88 is: 18,401.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,982.18 : 47,945.91 = 12,274.88 : x
  2. Step 2: Convert to fraction form
    31,982.18/47,945.91 = 12,274.88/x
  3. Step 3: Cross multiply
    31,982.18x = 47,945.91 × 12,274.88
  4. Step 4: Simplify right side
    31,982.18x = 588,530,291.74
  5. Step 5: Solve for x
    x = 588,530,291.74/31,982.18
  6. Step 6: Final answer
    x = 18,401.82

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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.