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Finding the Fourth Proportional to 15,344.78, 23,017.11 and 4,815.62

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Solution

The fourth proportional to 15,344.78, 23,017.11 and 4,815.62 is: 7,223.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,344.78 : 23,017.11 = 4,815.62 : x
  2. Step 2: Convert to fraction form
    15,344.78/23,017.11 = 4,815.62/x
  3. Step 3: Cross multiply
    15,344.78x = 23,017.11 × 4,815.62
  4. Step 4: Simplify right side
    15,344.78x = 110,841,655.26
  5. Step 5: Solve for x
    x = 110,841,655.26/15,344.78
  6. Step 6: Final answer
    x = 7,223.41

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Why These Related Problems?

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