Home / 36,138.60-54,171.45-16,431.30

Finding the Fourth Proportional to 36,138.60, 54,171.45 and 16,431.30

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Solution

The fourth proportional to 36,138.60, 54,171.45 and 16,431.30 is: 24,630.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,138.60 : 54,171.45 = 16,431.30 : x
  2. Step 2: Convert to fraction form
    36,138.60/54,171.45 = 16,431.30/x
  3. Step 3: Cross multiply
    36,138.60x = 54,171.45 × 16,431.30
  4. Step 4: Simplify right side
    36,138.60x = 890,107,346.39
  5. Step 5: Solve for x
    x = 890,107,346.39/36,138.60
  6. Step 6: Final answer
    x = 24,630.38

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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.