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Finding the Fourth Proportional to 40,236.40, 60,348 and 10,656.08

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Solution

The fourth proportional to 40,236.40, 60,348 and 10,656.08 is: 15,982.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,236.40 : 60,348 = 10,656.08 : x
  2. Step 2: Convert to fraction form
    40,236.40/60,348 = 10,656.08/x
  3. Step 3: Cross multiply
    40,236.40x = 60,348 × 10,656.08
  4. Step 4: Simplify right side
    40,236.40x = 643,073,115.84
  5. Step 5: Solve for x
    x = 643,073,115.84/40,236.40
  6. Step 6: Final answer
    x = 15,982.37

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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.