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Finding the Fourth Proportional to 38,175.40, 57,263.10 and 17,115.40

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Solution

The fourth proportional to 38,175.40, 57,263.10 and 17,115.40 is: 25,673.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,175.40 : 57,263.10 = 17,115.40 : x
  2. Step 2: Convert to fraction form
    38,175.40/57,263.10 = 17,115.40/x
  3. Step 3: Cross multiply
    38,175.40x = 57,263.10 × 17,115.40
  4. Step 4: Simplify right side
    38,175.40x = 980,080,861.74
  5. Step 5: Solve for x
    x = 980,080,861.74/38,175.40
  6. Step 6: Final answer
    x = 25,673.10

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.