Home / 36,251.10-54,378.45-12,879.36

Finding the Fourth Proportional to 36,251.10, 54,378.45 and 12,879.36

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Solution

The fourth proportional to 36,251.10, 54,378.45 and 12,879.36 is: 19,319.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,251.10 : 54,378.45 = 12,879.36 : x
  2. Step 2: Convert to fraction form
    36,251.10/54,378.45 = 12,879.36/x
  3. Step 3: Cross multiply
    36,251.10x = 54,378.45 × 12,879.36
  4. Step 4: Simplify right side
    36,251.10x = 700,359,633.79
  5. Step 5: Solve for x
    x = 700,359,633.79/36,251.10
  6. Step 6: Final answer
    x = 19,319.68

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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.