Home / 36,221.78-54,348.27-17,515.90

Finding the Fourth Proportional to 36,221.78, 54,348.27 and 17,515.90

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Solution

The fourth proportional to 36,221.78, 54,348.27 and 17,515.90 is: 26,281.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,221.78 : 54,348.27 = 17,515.90 : x
  2. Step 2: Convert to fraction form
    36,221.78/54,348.27 = 17,515.90/x
  3. Step 3: Cross multiply
    36,221.78x = 54,348.27 × 17,515.90
  4. Step 4: Simplify right side
    36,221.78x = 951,958,559.03
  5. Step 5: Solve for x
    x = 951,958,559.03/36,221.78
  6. Step 6: Final answer
    x = 26,281.38

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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.