Home / 20,165.32-30,244.56-5,375.80

Finding the Fourth Proportional to 20,165.32, 30,244.56 and 5,375.80

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Solution

The fourth proportional to 20,165.32, 30,244.56 and 5,375.80 is: 8,062.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,165.32 : 30,244.56 = 5,375.80 : x
  2. Step 2: Convert to fraction form
    20,165.32/30,244.56 = 5,375.80/x
  3. Step 3: Cross multiply
    20,165.32x = 30,244.56 × 5,375.80
  4. Step 4: Simplify right side
    20,165.32x = 162,588,705.65
  5. Step 5: Solve for x
    x = 162,588,705.65/20,165.32
  6. Step 6: Final answer
    x = 8,062.79

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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.