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Finding the Fourth Proportional to 43,704.62, 65,557 and 18,728.48

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Solution

The fourth proportional to 43,704.62, 65,557 and 18,728.48 is: 28,092.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,704.62 : 65,557 = 18,728.48 : x
  2. Step 2: Convert to fraction form
    43,704.62/65,557 = 18,728.48/x
  3. Step 3: Cross multiply
    43,704.62x = 65,557 × 18,728.48
  4. Step 4: Simplify right side
    43,704.62x = 1,227,782,963.36
  5. Step 5: Solve for x
    x = 1,227,782,963.36/43,704.62
  6. Step 6: Final answer
    x = 28,092.75

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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.