Home / 38,371.45-52,951.88-21,377.09

Finding the Fourth Proportional to 38,371.45, 52,951.88 and 21,377.09

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Solution

The fourth proportional to 38,371.45, 52,951.88 and 21,377.09 is: 29,499.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,371.45 : 52,951.88 = 21,377.09 : x
  2. Step 2: Convert to fraction form
    38,371.45/52,951.88 = 21,377.09/x
  3. Step 3: Cross multiply
    38,371.45x = 52,951.88 × 21,377.09
  4. Step 4: Simplify right side
    38,371.45x = 1,131,957,129.92
  5. Step 5: Solve for x
    x = 1,131,957,129.92/38,371.45
  6. Step 6: Final answer
    x = 29,499.99

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.