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Finding the Fourth Proportional to 27,168.72, 37,516.80 and 17,115.12

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Solution

The fourth proportional to 27,168.72, 37,516.80 and 17,115.12 is: 23,633.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,168.72 : 37,516.80 = 17,115.12 : x
  2. Step 2: Convert to fraction form
    27,168.72/37,516.80 = 17,115.12/x
  3. Step 3: Cross multiply
    27,168.72x = 37,516.80 × 17,115.12
  4. Step 4: Simplify right side
    27,168.72x = 642,104,534.02
  5. Step 5: Solve for x
    x = 642,104,534.02/27,168.72
  6. Step 6: Final answer
    x = 23,633.96

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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.