Home / 31,474.08-47,229.36-11,751.90

Finding the Fourth Proportional to 31,474.08, 47,229.36 and 11,751.90

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Solution

The fourth proportional to 31,474.08, 47,229.36 and 11,751.90 is: 17,634.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,474.08 : 47,229.36 = 11,751.90 : x
  2. Step 2: Convert to fraction form
    31,474.08/47,229.36 = 11,751.90/x
  3. Step 3: Cross multiply
    31,474.08x = 47,229.36 × 11,751.90
  4. Step 4: Simplify right side
    31,474.08x = 555,034,715.78
  5. Step 5: Solve for x
    x = 555,034,715.78/31,474.08
  6. Step 6: Final answer
    x = 17,634.66

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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.