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Finding the Fourth Proportional to 15,481.52, 23,220.48 and 4,389.20

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Solution

The fourth proportional to 15,481.52, 23,220.48 and 4,389.20 is: 6,583.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,481.52 : 23,220.48 = 4,389.20 : x
  2. Step 2: Convert to fraction form
    15,481.52/23,220.48 = 4,389.20/x
  3. Step 3: Cross multiply
    15,481.52x = 23,220.48 × 4,389.20
  4. Step 4: Simplify right side
    15,481.52x = 101,919,330.82
  5. Step 5: Solve for x
    x = 101,919,330.82/15,481.52
  6. Step 6: Final answer
    x = 6,583.29

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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.