Home / 25,691.76-38,541.30-7,923.91

Finding the Fourth Proportional to 25,691.76, 38,541.30 and 7,923.91

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Solution

The fourth proportional to 25,691.76, 38,541.30 and 7,923.91 is: 11,886.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,691.76 : 38,541.30 = 7,923.91 : x
  2. Step 2: Convert to fraction form
    25,691.76/38,541.30 = 7,923.91/x
  3. Step 3: Cross multiply
    25,691.76x = 38,541.30 × 7,923.91
  4. Step 4: Simplify right side
    25,691.76x = 305,397,792.48
  5. Step 5: Solve for x
    x = 305,397,792.48/25,691.76
  6. Step 6: Final answer
    x = 11,886.99

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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.