Home / 31,896.20-47,850.80-11,134.28

Finding the Fourth Proportional to 31,896.20, 47,850.80 and 11,134.28

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Solution

The fourth proportional to 31,896.20, 47,850.80 and 11,134.28 is: 16,703.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,896.20 : 47,850.80 = 11,134.28 : x
  2. Step 2: Convert to fraction form
    31,896.20/47,850.80 = 11,134.28/x
  3. Step 3: Cross multiply
    31,896.20x = 47,850.80 × 11,134.28
  4. Step 4: Simplify right side
    31,896.20x = 532,784,269.38
  5. Step 5: Solve for x
    x = 532,784,269.38/31,896.20
  6. Step 6: Final answer
    x = 16,703.69

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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.