Home / 36,279.66-54,403.08-12,906.72

Finding the Fourth Proportional to 36,279.66, 54,403.08 and 12,906.72

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Solution

The fourth proportional to 36,279.66, 54,403.08 and 12,906.72 is: 19,354.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,279.66 : 54,403.08 = 12,906.72 : x
  2. Step 2: Convert to fraction form
    36,279.66/54,403.08 = 12,906.72/x
  3. Step 3: Cross multiply
    36,279.66x = 54,403.08 × 12,906.72
  4. Step 4: Simplify right side
    36,279.66x = 702,165,320.70
  5. Step 5: Solve for x
    x = 702,165,320.70/36,279.66
  6. Step 6: Final answer
    x = 19,354.24

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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.