Home / 22,615.52-31,209.42-12,543.62

Finding the Fourth Proportional to 22,615.52, 31,209.42 and 12,543.62

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Solution

The fourth proportional to 22,615.52, 31,209.42 and 12,543.62 is: 17,310.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,615.52 : 31,209.42 = 12,543.62 : x
  2. Step 2: Convert to fraction form
    22,615.52/31,209.42 = 12,543.62/x
  3. Step 3: Cross multiply
    22,615.52x = 31,209.42 × 12,543.62
  4. Step 4: Simplify right side
    22,615.52x = 391,478,948.85
  5. Step 5: Solve for x
    x = 391,478,948.85/22,615.52
  6. Step 6: Final answer
    x = 17,310.19

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.