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Finding the Fourth Proportional to 40,452.84, 60,679.28 and 12,753

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Solution

The fourth proportional to 40,452.84, 60,679.28 and 12,753 is: 19,129.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,452.84 : 60,679.28 = 12,753 : x
  2. Step 2: Convert to fraction form
    40,452.84/60,679.28 = 12,753/x
  3. Step 3: Cross multiply
    40,452.84x = 60,679.28 × 12,753
  4. Step 4: Simplify right side
    40,452.84x = 773,842,857.84
  5. Step 5: Solve for x
    x = 773,842,857.84/40,452.84
  6. Step 6: Final answer
    x = 19,129.51

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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.