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Finding the Fourth Proportional to 27,679.39, 41,521.11 and 7,958.12

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Solution

The fourth proportional to 27,679.39, 41,521.11 and 7,958.12 is: 11,937.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,679.39 : 41,521.11 = 7,958.12 : x
  2. Step 2: Convert to fraction form
    27,679.39/41,521.11 = 7,958.12/x
  3. Step 3: Cross multiply
    27,679.39x = 41,521.11 × 7,958.12
  4. Step 4: Simplify right side
    27,679.39x = 330,429,738.46
  5. Step 5: Solve for x
    x = 330,429,738.46/27,679.39
  6. Step 6: Final answer
    x = 11,937.75

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1.5x scale

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.