Home / 20,520.46-30,768.36-8,025.58

Finding the Fourth Proportional to 20,520.46, 30,768.36 and 8,025.58

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Solution

The fourth proportional to 20,520.46, 30,768.36 and 8,025.58 is: 12,033.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,520.46 : 30,768.36 = 8,025.58 : x
  2. Step 2: Convert to fraction form
    20,520.46/30,768.36 = 8,025.58/x
  3. Step 3: Cross multiply
    20,520.46x = 30,768.36 × 8,025.58
  4. Step 4: Simplify right side
    20,520.46x = 246,933,934.65
  5. Step 5: Solve for x
    x = 246,933,934.65/20,520.46
  6. Step 6: Final answer
    x = 12,033.55

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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.