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Finding the Fourth Proportional to 17,808.72, 24,575.76 and 11,520.96

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Solution

The fourth proportional to 17,808.72, 24,575.76 and 11,520.96 is: 15,898.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,808.72 : 24,575.76 = 11,520.96 : x
  2. Step 2: Convert to fraction form
    17,808.72/24,575.76 = 11,520.96/x
  3. Step 3: Cross multiply
    17,808.72x = 24,575.76 × 11,520.96
  4. Step 4: Simplify right side
    17,808.72x = 283,136,347.93
  5. Step 5: Solve for x
    x = 283,136,347.93/17,808.72
  6. Step 6: Final answer
    x = 15,898.75

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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.