Home / 31,475.52-47,213.36-12,755.88

Finding the Fourth Proportional to 31,475.52, 47,213.36 and 12,755.88

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Solution

The fourth proportional to 31,475.52, 47,213.36 and 12,755.88 is: 19,133.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,475.52 : 47,213.36 = 12,755.88 : x
  2. Step 2: Convert to fraction form
    31,475.52/47,213.36 = 12,755.88/x
  3. Step 3: Cross multiply
    31,475.52x = 47,213.36 × 12,755.88
  4. Step 4: Simplify right side
    31,475.52x = 602,247,954.56
  5. Step 5: Solve for x
    x = 602,247,954.56/31,475.52
  6. Step 6: Final answer
    x = 19,133.85

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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.