Home / 31,781.12-47,676.72-11,006.24

Finding the Fourth Proportional to 31,781.12, 47,676.72 and 11,006.24

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Solution

The fourth proportional to 31,781.12, 47,676.72 and 11,006.24 is: 16,511.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,781.12 : 47,676.72 = 11,006.24 : x
  2. Step 2: Convert to fraction form
    31,781.12/47,676.72 = 11,006.24/x
  3. Step 3: Cross multiply
    31,781.12x = 47,676.72 × 11,006.24
  4. Step 4: Simplify right side
    31,781.12x = 524,741,422.73
  5. Step 5: Solve for x
    x = 524,741,422.73/31,781.12
  6. Step 6: Final answer
    x = 16,511.11

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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.