Home / 31,716.50-47,575.14-15,078.14

Finding the Fourth Proportional to 31,716.50, 47,575.14 and 15,078.14

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Solution

The fourth proportional to 31,716.50, 47,575.14 and 15,078.14 is: 22,617.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,716.50 : 47,575.14 = 15,078.14 : x
  2. Step 2: Convert to fraction form
    31,716.50/47,575.14 = 15,078.14/x
  3. Step 3: Cross multiply
    31,716.50x = 47,575.14 × 15,078.14
  4. Step 4: Simplify right side
    31,716.50x = 717,344,621.44
  5. Step 5: Solve for x
    x = 717,344,621.44/31,716.50
  6. Step 6: Final answer
    x = 22,617.40

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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.