Home / 36,138.35-54,207.73-12,764.79

Finding the Fourth Proportional to 36,138.35, 54,207.73 and 12,764.79

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Solution

The fourth proportional to 36,138.35, 54,207.73 and 12,764.79 is: 19,147.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,138.35 : 54,207.73 = 12,764.79 : x
  2. Step 2: Convert to fraction form
    36,138.35/54,207.73 = 12,764.79/x
  3. Step 3: Cross multiply
    36,138.35x = 54,207.73 × 12,764.79
  4. Step 4: Simplify right side
    36,138.35x = 691,950,305.78
  5. Step 5: Solve for x
    x = 691,950,305.78/36,138.35
  6. Step 6: Final answer
    x = 19,147.26

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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.