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Finding the Fourth Proportional to 27,279.30, 40,945.05 and 14,141.10

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Solution

The fourth proportional to 27,279.30, 40,945.05 and 14,141.10 is: 21,225.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,279.30 : 40,945.05 = 14,141.10 : x
  2. Step 2: Convert to fraction form
    27,279.30/40,945.05 = 14,141.10/x
  3. Step 3: Cross multiply
    27,279.30x = 40,945.05 × 14,141.10
  4. Step 4: Simplify right side
    27,279.30x = 579,008,046.56
  5. Step 5: Solve for x
    x = 579,008,046.56/27,279.30
  6. Step 6: Final answer
    x = 21,225.18

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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.