Home / 36,421.38-54,618.83-12,722.29

Finding the Fourth Proportional to 36,421.38, 54,618.83 and 12,722.29

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Solution

The fourth proportional to 36,421.38, 54,618.83 and 12,722.29 is: 19,078.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,421.38 : 54,618.83 = 12,722.29 : x
  2. Step 2: Convert to fraction form
    36,421.38/54,618.83 = 12,722.29/x
  3. Step 3: Cross multiply
    36,421.38x = 54,618.83 × 12,722.29
  4. Step 4: Simplify right side
    36,421.38x = 694,876,594.72
  5. Step 5: Solve for x
    x = 694,876,594.72/36,421.38
  6. Step 6: Final answer
    x = 19,078.81

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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.