Home / 57,217.92-85,824-15,665.28

Finding the Fourth Proportional to 57,217.92, 85,824 and 15,665.28

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Solution

The fourth proportional to 57,217.92, 85,824 and 15,665.28 is: 23,497.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,217.92 : 85,824 = 15,665.28 : x
  2. Step 2: Convert to fraction form
    57,217.92/85,824 = 15,665.28/x
  3. Step 3: Cross multiply
    57,217.92x = 85,824 × 15,665.28
  4. Step 4: Simplify right side
    57,217.92x = 1,344,456,990.72
  5. Step 5: Solve for x
    x = 1,344,456,990.72/57,217.92
  6. Step 6: Final answer
    x = 23,497.13

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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.