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Finding the Fourth Proportional to 36,182.60, 54,273.90 and 21,408.20

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Solution

The fourth proportional to 36,182.60, 54,273.90 and 21,408.20 is: 32,112.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,182.60 : 54,273.90 = 21,408.20 : x
  2. Step 2: Convert to fraction form
    36,182.60/54,273.90 = 21,408.20/x
  3. Step 3: Cross multiply
    36,182.60x = 54,273.90 × 21,408.20
  4. Step 4: Simplify right side
    36,182.60x = 1,161,906,505.98
  5. Step 5: Solve for x
    x = 1,161,906,505.98/36,182.60
  6. Step 6: Final answer
    x = 32,112.30

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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.