Home / 31,610.10-47,414.70-9,438.78

Finding the Fourth Proportional to 31,610.10, 47,414.70 and 9,438.78

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Solution

The fourth proportional to 31,610.10, 47,414.70 and 9,438.78 is: 14,158.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,610.10 : 47,414.70 = 9,438.78 : x
  2. Step 2: Convert to fraction form
    31,610.10/47,414.70 = 9,438.78/x
  3. Step 3: Cross multiply
    31,610.10x = 47,414.70 × 9,438.78
  4. Step 4: Simplify right side
    31,610.10x = 447,536,922.07
  5. Step 5: Solve for x
    x = 447,536,922.07/31,610.10
  6. Step 6: Final answer
    x = 14,158.04

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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.