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Finding the Fourth Proportional to 40,247.76, 60,380.60 and 13,231.32

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Solution

The fourth proportional to 40,247.76, 60,380.60 and 13,231.32 is: 19,849.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,247.76 : 60,380.60 = 13,231.32 : x
  2. Step 2: Convert to fraction form
    40,247.76/60,380.60 = 13,231.32/x
  3. Step 3: Cross multiply
    40,247.76x = 60,380.60 × 13,231.32
  4. Step 4: Simplify right side
    40,247.76x = 798,914,974.24
  5. Step 5: Solve for x
    x = 798,914,974.24/40,247.76
  6. Step 6: Final answer
    x = 19,849.93

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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.