Home / 20,195.45-30,310.68-20,148.75

Finding the Fourth Proportional to 20,195.45, 30,310.68 and 20,148.75

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Solution

The fourth proportional to 20,195.45, 30,310.68 and 20,148.75 is: 30,240.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,195.45 : 30,310.68 = 20,148.75 : x
  2. Step 2: Convert to fraction form
    20,195.45/30,310.68 = 20,148.75/x
  3. Step 3: Cross multiply
    20,195.45x = 30,310.68 × 20,148.75
  4. Step 4: Simplify right side
    20,195.45x = 610,722,313.65
  5. Step 5: Solve for x
    x = 610,722,313.65/20,195.45
  6. Step 6: Final answer
    x = 30,240.59

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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.