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Finding the Fourth Proportional to 17,866.56, 24,599.76 and 15,172.16

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Solution

The fourth proportional to 17,866.56, 24,599.76 and 15,172.16 is: 20,889.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,866.56 : 24,599.76 = 15,172.16 : x
  2. Step 2: Convert to fraction form
    17,866.56/24,599.76 = 15,172.16/x
  3. Step 3: Cross multiply
    17,866.56x = 24,599.76 × 15,172.16
  4. Step 4: Simplify right side
    17,866.56x = 373,231,494.68
  5. Step 5: Solve for x
    x = 373,231,494.68/17,866.56
  6. Step 6: Final answer
    x = 20,889.95

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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.