Home / 25,721.46-38,581.11-7,951.41

Finding the Fourth Proportional to 25,721.46, 38,581.11 and 7,951.41

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Solution

The fourth proportional to 25,721.46, 38,581.11 and 7,951.41 is: 11,926.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,721.46 : 38,581.11 = 7,951.41 : x
  2. Step 2: Convert to fraction form
    25,721.46/38,581.11 = 7,951.41/x
  3. Step 3: Cross multiply
    25,721.46x = 38,581.11 × 7,951.41
  4. Step 4: Simplify right side
    25,721.46x = 306,774,223.87
  5. Step 5: Solve for x
    x = 306,774,223.87/25,721.46
  6. Step 6: Final answer
    x = 11,926.78

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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.