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Finding the Fourth Proportional to 27,409.70, 41,115.90 and 14,287.70

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Solution

The fourth proportional to 27,409.70, 41,115.90 and 14,287.70 is: 21,432.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,409.70 : 41,115.90 = 14,287.70 : x
  2. Step 2: Convert to fraction form
    27,409.70/41,115.90 = 14,287.70/x
  3. Step 3: Cross multiply
    27,409.70x = 41,115.90 × 14,287.70
  4. Step 4: Simplify right side
    27,409.70x = 587,451,644.43
  5. Step 5: Solve for x
    x = 587,451,644.43/27,409.70
  6. Step 6: Final answer
    x = 21,432.25

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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.