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Finding the Fourth Proportional to 44,502.78, 66,765.09 and 13,338

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Solution

The fourth proportional to 44,502.78, 66,765.09 and 13,338 is: 20,010.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    44,502.78 : 66,765.09 = 13,338 : x
  2. Step 2: Convert to fraction form
    44,502.78/66,765.09 = 13,338/x
  3. Step 3: Cross multiply
    44,502.78x = 66,765.09 × 13,338
  4. Step 4: Simplify right side
    44,502.78x = 890,512,770.42
  5. Step 5: Solve for x
    x = 890,512,770.42/44,502.78
  6. Step 6: Final answer
    x = 20,010.27

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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.