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Finding the Fourth Proportional to 36,380.65, 50,203.65 and 20,248.78

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Solution

The fourth proportional to 36,380.65, 50,203.65 and 20,248.78 is: 27,942.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,380.65 : 50,203.65 = 20,248.78 : x
  2. Step 2: Convert to fraction form
    36,380.65/50,203.65 = 20,248.78/x
  3. Step 3: Cross multiply
    36,380.65x = 50,203.65 × 20,248.78
  4. Step 4: Simplify right side
    36,380.65x = 1,016,562,664.05
  5. Step 5: Solve for x
    x = 1,016,562,664.05/36,380.65
  6. Step 6: Final answer
    x = 27,942.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.