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Finding the Fourth Proportional to 36,330.40, 54,380.40 and 28,496.80

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Solution

The fourth proportional to 36,330.40, 54,380.40 and 28,496.80 is: 42,654.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,330.40 : 54,380.40 = 28,496.80 : x
  2. Step 2: Convert to fraction form
    36,330.40/54,380.40 = 28,496.80/x
  3. Step 3: Cross multiply
    36,330.40x = 54,380.40 × 28,496.80
  4. Step 4: Simplify right side
    36,330.40x = 1,549,667,382.72
  5. Step 5: Solve for x
    x = 1,549,667,382.72/36,330.40
  6. Step 6: Final answer
    x = 42,654.84

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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.