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Finding the Fourth Proportional to 22,999.80, 34,499.70 and 15,126.60

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Solution

The fourth proportional to 22,999.80, 34,499.70 and 15,126.60 is: 22,689.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,999.80 : 34,499.70 = 15,126.60 : x
  2. Step 2: Convert to fraction form
    22,999.80/34,499.70 = 15,126.60/x
  3. Step 3: Cross multiply
    22,999.80x = 34,499.70 × 15,126.60
  4. Step 4: Simplify right side
    22,999.80x = 521,863,162.02
  5. Step 5: Solve for x
    x = 521,863,162.02/22,999.80
  6. Step 6: Final answer
    x = 22,689.90

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Similar ratio
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1.5x scale

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.