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Finding the Fourth Proportional to 27,599.79, 41,401.01 and 7,879.71

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Solution

The fourth proportional to 27,599.79, 41,401.01 and 7,879.71 is: 11,819.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,599.79 : 41,401.01 = 7,879.71 : x
  2. Step 2: Convert to fraction form
    27,599.79/41,401.01 = 7,879.71/x
  3. Step 3: Cross multiply
    27,599.79x = 41,401.01 × 7,879.71
  4. Step 4: Simplify right side
    27,599.79x = 326,227,913.11
  5. Step 5: Solve for x
    x = 326,227,913.11/27,599.79
  6. Step 6: Final answer
    x = 11,819.94

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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.