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Finding the Fourth Proportional to 27,255.80, 40,883.70 and 14,112.20

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Solution

The fourth proportional to 27,255.80, 40,883.70 and 14,112.20 is: 21,168.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,255.80 : 40,883.70 = 14,112.20 : x
  2. Step 2: Convert to fraction form
    27,255.80/40,883.70 = 14,112.20/x
  3. Step 3: Cross multiply
    27,255.80x = 40,883.70 × 14,112.20
  4. Step 4: Simplify right side
    27,255.80x = 576,958,951.14
  5. Step 5: Solve for x
    x = 576,958,951.14/27,255.80
  6. Step 6: Final answer
    x = 21,168.30

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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.