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Finding the Fourth Proportional to 26,921.20, 40,373.17 and 8,906.08

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Solution

The fourth proportional to 26,921.20, 40,373.17 and 8,906.08 is: 13,356.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,921.20 : 40,373.17 = 8,906.08 : x
  2. Step 2: Convert to fraction form
    26,921.20/40,373.17 = 8,906.08/x
  3. Step 3: Cross multiply
    26,921.20x = 40,373.17 × 8,906.08
  4. Step 4: Simplify right side
    26,921.20x = 359,566,435.48
  5. Step 5: Solve for x
    x = 359,566,435.48/26,921.20
  6. Step 6: Final answer
    x = 13,356.26

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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.