Home / 29,771.20-41,092.68-20,820.97

Finding the Fourth Proportional to 29,771.20, 41,092.68 and 20,820.97

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Solution

The fourth proportional to 29,771.20, 41,092.68 and 20,820.97 is: 28,738.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,771.20 : 41,092.68 = 20,820.97 : x
  2. Step 2: Convert to fraction form
    29,771.20/41,092.68 = 20,820.97/x
  3. Step 3: Cross multiply
    29,771.20x = 41,092.68 × 20,820.97
  4. Step 4: Simplify right side
    29,771.20x = 855,589,457.50
  5. Step 5: Solve for x
    x = 855,589,457.50/29,771.20
  6. Step 6: Final answer
    x = 28,738.83

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.