Home / 31,410.62-47,097.47-12,691.25

Finding the Fourth Proportional to 31,410.62, 47,097.47 and 12,691.25

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Solution

The fourth proportional to 31,410.62, 47,097.47 and 12,691.25 is: 19,029.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,410.62 : 47,097.47 = 12,691.25 : x
  2. Step 2: Convert to fraction form
    31,410.62/47,097.47 = 12,691.25/x
  3. Step 3: Cross multiply
    31,410.62x = 47,097.47 × 12,691.25
  4. Step 4: Simplify right side
    31,410.62x = 597,725,766.14
  5. Step 5: Solve for x
    x = 597,725,766.14/31,410.62
  6. Step 6: Final answer
    x = 19,029.42

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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.