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Finding the Fourth Proportional to 27,863.60, 41,755.72 and 13,809.77

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Solution

The fourth proportional to 27,863.60, 41,755.72 and 13,809.77 is: 20,694.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,863.60 : 41,755.72 = 13,809.77 : x
  2. Step 2: Convert to fraction form
    27,863.60/41,755.72 = 13,809.77/x
  3. Step 3: Cross multiply
    27,863.60x = 41,755.72 × 13,809.77
  4. Step 4: Simplify right side
    27,863.60x = 576,636,889.38
  5. Step 5: Solve for x
    x = 576,636,889.38/27,863.60
  6. Step 6: Final answer
    x = 20,694.99

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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.