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Finding the Fourth Proportional to 27,445.80, 41,168.70 and 18,697.80

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Solution

The fourth proportional to 27,445.80, 41,168.70 and 18,697.80 is: 28,046.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,445.80 : 41,168.70 = 18,697.80 : x
  2. Step 2: Convert to fraction form
    27,445.80/41,168.70 = 18,697.80/x
  3. Step 3: Cross multiply
    27,445.80x = 41,168.70 × 18,697.80
  4. Step 4: Simplify right side
    27,445.80x = 769,764,118.86
  5. Step 5: Solve for x
    x = 769,764,118.86/27,445.80
  6. Step 6: Final answer
    x = 28,046.70

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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.