Home / 31,971.38-47,982.18-22,179.56

Finding the Fourth Proportional to 31,971.38, 47,982.18 and 22,179.56

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Solution

The fourth proportional to 31,971.38, 47,982.18 and 22,179.56 is: 33,286.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,971.38 : 47,982.18 = 22,179.56 : x
  2. Step 2: Convert to fraction form
    31,971.38/47,982.18 = 22,179.56/x
  3. Step 3: Cross multiply
    31,971.38x = 47,982.18 × 22,179.56
  4. Step 4: Simplify right side
    31,971.38x = 1,064,223,640.24
  5. Step 5: Solve for x
    x = 1,064,223,640.24/31,971.38
  6. Step 6: Final answer
    x = 33,286.76

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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.