Home / 31,358.05-47,033.62-9,171.62

Finding the Fourth Proportional to 31,358.05, 47,033.62 and 9,171.62

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Solution

The fourth proportional to 31,358.05, 47,033.62 and 9,171.62 is: 13,756.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,358.05 : 47,033.62 = 9,171.62 : x
  2. Step 2: Convert to fraction form
    31,358.05/47,033.62 = 9,171.62/x
  3. Step 3: Cross multiply
    31,358.05x = 47,033.62 × 9,171.62
  4. Step 4: Simplify right side
    31,358.05x = 431,374,489.86
  5. Step 5: Solve for x
    x = 431,374,489.86/31,358.05
  6. Step 6: Final answer
    x = 13,756.42

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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.