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Finding the Fourth Proportional to 27,269.84, 40,906.92 and 7,279.40

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Solution

The fourth proportional to 27,269.84, 40,906.92 and 7,279.40 is: 10,919.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,269.84 : 40,906.92 = 7,279.40 : x
  2. Step 2: Convert to fraction form
    27,269.84/40,906.92 = 7,279.40/x
  3. Step 3: Cross multiply
    27,269.84x = 40,906.92 × 7,279.40
  4. Step 4: Simplify right side
    27,269.84x = 297,777,833.45
  5. Step 5: Solve for x
    x = 297,777,833.45/27,269.84
  6. Step 6: Final answer
    x = 10,919.68

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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.