Home / 28,256.92-42,393.17-12,474.52

Finding the Fourth Proportional to 28,256.92, 42,393.17 and 12,474.52

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Solution

The fourth proportional to 28,256.92, 42,393.17 and 12,474.52 is: 18,715.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,256.92 : 42,393.17 = 12,474.52 : x
  2. Step 2: Convert to fraction form
    28,256.92/42,393.17 = 12,474.52/x
  3. Step 3: Cross multiply
    28,256.92x = 42,393.17 × 12,474.52
  4. Step 4: Simplify right side
    28,256.92x = 528,834,610.69
  5. Step 5: Solve for x
    x = 528,834,610.69/28,256.92
  6. Step 6: Final answer
    x = 18,715.23

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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.