Home / 36,091.81-54,138.12-11,131.66

Finding the Fourth Proportional to 36,091.81, 54,138.12 and 11,131.66

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Solution

The fourth proportional to 36,091.81, 54,138.12 and 11,131.66 is: 16,697.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,091.81 : 54,138.12 = 11,131.66 : x
  2. Step 2: Convert to fraction form
    36,091.81/54,138.12 = 11,131.66/x
  3. Step 3: Cross multiply
    36,091.81x = 54,138.12 × 11,131.66
  4. Step 4: Simplify right side
    36,091.81x = 602,647,144.88
  5. Step 5: Solve for x
    x = 602,647,144.88/36,091.81
  6. Step 6: Final answer
    x = 16,697.61

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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.