Home / 36,308.75-54,441.61-13,821.12

Finding the Fourth Proportional to 36,308.75, 54,441.61 and 13,821.12

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Solution

The fourth proportional to 36,308.75, 54,441.61 and 13,821.12 is: 20,723.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,308.75 : 54,441.61 = 13,821.12 : x
  2. Step 2: Convert to fraction form
    36,308.75/54,441.61 = 13,821.12/x
  3. Step 3: Cross multiply
    36,308.75x = 54,441.61 × 13,821.12
  4. Step 4: Simplify right side
    36,308.75x = 752,443,990.25
  5. Step 5: Solve for x
    x = 752,443,990.25/36,308.75
  6. Step 6: Final answer
    x = 20,723.49

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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.