Home / 36,219.36-54,391.68-21,520.64

Finding the Fourth Proportional to 36,219.36, 54,391.68 and 21,520.64

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Solution

The fourth proportional to 36,219.36, 54,391.68 and 21,520.64 is: 32,318.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,219.36 : 54,391.68 = 21,520.64 : x
  2. Step 2: Convert to fraction form
    36,219.36/54,391.68 = 21,520.64/x
  3. Step 3: Cross multiply
    36,219.36x = 54,391.68 × 21,520.64
  4. Step 4: Simplify right side
    36,219.36x = 1,170,543,764.28
  5. Step 5: Solve for x
    x = 1,170,543,764.28/36,219.36
  6. Step 6: Final answer
    x = 32,318.18

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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.