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Finding the Fourth Proportional to 17,312.40, 25,968.60 and 5,000.40

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Solution

The fourth proportional to 17,312.40, 25,968.60 and 5,000.40 is: 7,500.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,312.40 : 25,968.60 = 5,000.40 : x
  2. Step 2: Convert to fraction form
    17,312.40/25,968.60 = 5,000.40/x
  3. Step 3: Cross multiply
    17,312.40x = 25,968.60 × 5,000.40
  4. Step 4: Simplify right side
    17,312.40x = 129,853,387.44
  5. Step 5: Solve for x
    x = 129,853,387.44/17,312.40
  6. Step 6: Final answer
    x = 7,500.60

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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.