Home / 20,112.13-30,169.01-6,786.55

Finding the Fourth Proportional to 20,112.13, 30,169.01 and 6,786.55

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Solution

The fourth proportional to 20,112.13, 30,169.01 and 6,786.55 is: 10,180.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,112.13 : 30,169.01 = 6,786.55 : x
  2. Step 2: Convert to fraction form
    20,112.13/30,169.01 = 6,786.55/x
  3. Step 3: Cross multiply
    20,112.13x = 30,169.01 × 6,786.55
  4. Step 4: Simplify right side
    20,112.13x = 204,743,494.82
  5. Step 5: Solve for x
    x = 204,743,494.82/20,112.13
  6. Step 6: Final answer
    x = 10,180.10

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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.