Home / 20,550.45-30,825.68-6,510.52

Finding the Fourth Proportional to 20,550.45, 30,825.68 and 6,510.52

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Solution

The fourth proportional to 20,550.45, 30,825.68 and 6,510.52 is: 9,765.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,550.45 : 30,825.68 = 6,510.52 : x
  2. Step 2: Convert to fraction form
    20,550.45/30,825.68 = 6,510.52/x
  3. Step 3: Cross multiply
    20,550.45x = 30,825.68 × 6,510.52
  4. Step 4: Simplify right side
    20,550.45x = 200,691,206.15
  5. Step 5: Solve for x
    x = 200,691,206.15/20,550.45
  6. Step 6: Final answer
    x = 9,765.78

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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.