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Finding the Fourth Proportional to 40,442, 60,663 and 11,258

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Solution

The fourth proportional to 40,442, 60,663 and 11,258 is: 16,887

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,442 : 60,663 = 11,258 : x
  2. Step 2: Convert to fraction form
    40,442/60,663 = 11,258/x
  3. Step 3: Cross multiply
    40,442x = 60,663 × 11,258
  4. Step 4: Simplify right side
    40,442x = 682,944,054
  5. Step 5: Solve for x
    x = 682,944,054/40,442
  6. Step 6: Final answer
    x = 16,887

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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.