Home / 15,531.28-23,294.49-5,143.03

Finding the Fourth Proportional to 15,531.28, 23,294.49 and 5,143.03

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Solution

The fourth proportional to 15,531.28, 23,294.49 and 5,143.03 is: 7,713.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,531.28 : 23,294.49 = 5,143.03 : x
  2. Step 2: Convert to fraction form
    15,531.28/23,294.49 = 5,143.03/x
  3. Step 3: Cross multiply
    15,531.28x = 23,294.49 × 5,143.03
  4. Step 4: Simplify right side
    15,531.28x = 119,804,183.38
  5. Step 5: Solve for x
    x = 119,804,183.38/15,531.28
  6. Step 6: Final answer
    x = 7,713.74

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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.