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Finding the Fourth Proportional to 22,690.60, 34,035.90 and 8,830.60

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Solution

The fourth proportional to 22,690.60, 34,035.90 and 8,830.60 is: 13,245.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,690.60 : 34,035.90 = 8,830.60 : x
  2. Step 2: Convert to fraction form
    22,690.60/34,035.90 = 8,830.60/x
  3. Step 3: Cross multiply
    22,690.60x = 34,035.90 × 8,830.60
  4. Step 4: Simplify right side
    22,690.60x = 300,557,418.54
  5. Step 5: Solve for x
    x = 300,557,418.54/22,690.60
  6. Step 6: Final answer
    x = 13,245.90

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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.