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Finding the Fourth Proportional to 17,661.90, 24,372.87 and 9,703.65

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Solution

The fourth proportional to 17,661.90, 24,372.87 and 9,703.65 is: 13,390.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,661.90 : 24,372.87 = 9,703.65 : x
  2. Step 2: Convert to fraction form
    17,661.90/24,372.87 = 9,703.65/x
  3. Step 3: Cross multiply
    17,661.90x = 24,372.87 × 9,703.65
  4. Step 4: Simplify right side
    17,661.90x = 236,505,799.98
  5. Step 5: Solve for x
    x = 236,505,799.98/17,661.90
  6. Step 6: Final answer
    x = 13,390.73

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.