Home / 31,517.31-47,284.17-11,797.39

Finding the Fourth Proportional to 31,517.31, 47,284.17 and 11,797.39

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Solution

The fourth proportional to 31,517.31, 47,284.17 and 11,797.39 is: 17,699.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,517.31 : 47,284.17 = 11,797.39 : x
  2. Step 2: Convert to fraction form
    31,517.31/47,284.17 = 11,797.39/x
  3. Step 3: Cross multiply
    31,517.31x = 47,284.17 × 11,797.39
  4. Step 4: Simplify right side
    31,517.31x = 557,829,735.33
  5. Step 5: Solve for x
    x = 557,829,735.33/31,517.31
  6. Step 6: Final answer
    x = 17,699.15

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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.