Home / 38,279.92-57,428.16-11,623.72

Finding the Fourth Proportional to 38,279.92, 57,428.16 and 11,623.72

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Solution

The fourth proportional to 38,279.92, 57,428.16 and 11,623.72 is: 17,438.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,279.92 : 57,428.16 = 11,623.72 : x
  2. Step 2: Convert to fraction form
    38,279.92/57,428.16 = 11,623.72/x
  3. Step 3: Cross multiply
    38,279.92x = 57,428.16 × 11,623.72
  4. Step 4: Simplify right side
    38,279.92x = 667,528,851.96
  5. Step 5: Solve for x
    x = 667,528,851.96/38,279.92
  6. Step 6: Final answer
    x = 17,438.09

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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.