Home / 31,680.75-47,531.67-10,622.88

Finding the Fourth Proportional to 31,680.75, 47,531.67 and 10,622.88

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Solution

The fourth proportional to 31,680.75, 47,531.67 and 10,622.88 is: 15,937.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,680.75 : 47,531.67 = 10,622.88 : x
  2. Step 2: Convert to fraction form
    31,680.75/47,531.67 = 10,622.88/x
  3. Step 3: Cross multiply
    31,680.75x = 47,531.67 × 10,622.88
  4. Step 4: Simplify right side
    31,680.75x = 504,923,226.61
  5. Step 5: Solve for x
    x = 504,923,226.61/31,680.75
  6. Step 6: Final answer
    x = 15,937.86

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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.