Home / 26,845.12-40,279.68-13,690.56

Finding the Fourth Proportional to 26,845.12, 40,279.68 and 13,690.56

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Solution

The fourth proportional to 26,845.12, 40,279.68 and 13,690.56 is: 20,541.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,845.12 : 40,279.68 = 13,690.56 : x
  2. Step 2: Convert to fraction form
    26,845.12/40,279.68 = 13,690.56/x
  3. Step 3: Cross multiply
    26,845.12x = 40,279.68 × 13,690.56
  4. Step 4: Simplify right side
    26,845.12x = 551,451,375.82
  5. Step 5: Solve for x
    x = 551,451,375.82/26,845.12
  6. Step 6: Final answer
    x = 20,541.96

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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.