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Finding the Fourth Proportional to 26,652.60, 39,930.90 and 15,550.20

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Solution

The fourth proportional to 26,652.60, 39,930.90 and 15,550.20 is: 23,297.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,652.60 : 39,930.90 = 15,550.20 : x
  2. Step 2: Convert to fraction form
    26,652.60/39,930.90 = 15,550.20/x
  3. Step 3: Cross multiply
    26,652.60x = 39,930.90 × 15,550.20
  4. Step 4: Simplify right side
    26,652.60x = 620,933,481.18
  5. Step 5: Solve for x
    x = 620,933,481.18/26,652.60
  6. Step 6: Final answer
    x = 23,297.29

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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.