Home / 38,478.92-57,718.38-17,702.60

Finding the Fourth Proportional to 38,478.92, 57,718.38 and 17,702.60

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Solution

The fourth proportional to 38,478.92, 57,718.38 and 17,702.60 is: 26,553.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,478.92 : 57,718.38 = 17,702.60 : x
  2. Step 2: Convert to fraction form
    38,478.92/57,718.38 = 17,702.60/x
  3. Step 3: Cross multiply
    38,478.92x = 57,718.38 × 17,702.60
  4. Step 4: Simplify right side
    38,478.92x = 1,021,765,393.79
  5. Step 5: Solve for x
    x = 1,021,765,393.79/38,478.92
  6. Step 6: Final answer
    x = 26,553.90

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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.