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Finding the Fourth Proportional to 22,897.90, 34,350.90 and 8,115.40

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Solution

The fourth proportional to 22,897.90, 34,350.90 and 8,115.40 is: 12,174.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,897.90 : 34,350.90 = 8,115.40 : x
  2. Step 2: Convert to fraction form
    22,897.90/34,350.90 = 8,115.40/x
  3. Step 3: Cross multiply
    22,897.90x = 34,350.90 × 8,115.40
  4. Step 4: Simplify right side
    22,897.90x = 278,771,293.86
  5. Step 5: Solve for x
    x = 278,771,293.86/22,897.90
  6. Step 6: Final answer
    x = 12,174.54

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.