Home / 20,320.58-30,481.41-7,169.96

Finding the Fourth Proportional to 20,320.58, 30,481.41 and 7,169.96

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Solution

The fourth proportional to 20,320.58, 30,481.41 and 7,169.96 is: 10,755.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,320.58 : 30,481.41 = 7,169.96 : x
  2. Step 2: Convert to fraction form
    20,320.58/30,481.41 = 7,169.96/x
  3. Step 3: Cross multiply
    20,320.58x = 30,481.41 × 7,169.96
  4. Step 4: Simplify right side
    20,320.58x = 218,550,490.44
  5. Step 5: Solve for x
    x = 218,550,490.44/20,320.58
  6. Step 6: Final answer
    x = 10,755.13

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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.