Home / 31,522.62-47,287.14-18,210.57

Finding the Fourth Proportional to 31,522.62, 47,287.14 and 18,210.57

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Solution

The fourth proportional to 31,522.62, 47,287.14 and 18,210.57 is: 27,317.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,522.62 : 47,287.14 = 18,210.57 : x
  2. Step 2: Convert to fraction form
    31,522.62/47,287.14 = 18,210.57/x
  3. Step 3: Cross multiply
    31,522.62x = 47,287.14 × 18,210.57
  4. Step 4: Simplify right side
    31,522.62x = 861,125,895.88
  5. Step 5: Solve for x
    x = 861,125,895.88/31,522.62
  6. Step 6: Final answer
    x = 27,317.71

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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.