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Finding the Fourth Proportional to 40,446.12, 60,644.78 and 15,488

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Solution

The fourth proportional to 40,446.12, 60,644.78 and 15,488 is: 23,222.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,446.12 : 60,644.78 = 15,488 : x
  2. Step 2: Convert to fraction form
    40,446.12/60,644.78 = 15,488/x
  3. Step 3: Cross multiply
    40,446.12x = 60,644.78 × 15,488
  4. Step 4: Simplify right side
    40,446.12x = 939,266,352.64
  5. Step 5: Solve for x
    x = 939,266,352.64/40,446.12
  6. Step 6: Final answer
    x = 23,222.66

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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.