Home / 20,380.13-30,566.93-5,585.61

Finding the Fourth Proportional to 20,380.13, 30,566.93 and 5,585.61

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Solution

The fourth proportional to 20,380.13, 30,566.93 and 5,585.61 is: 8,377.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,380.13 : 30,566.93 = 5,585.61 : x
  2. Step 2: Convert to fraction form
    20,380.13/30,566.93 = 5,585.61/x
  3. Step 3: Cross multiply
    20,380.13x = 30,566.93 × 5,585.61
  4. Step 4: Simplify right side
    20,380.13x = 170,734,949.88
  5. Step 5: Solve for x
    x = 170,734,949.88/20,380.13
  6. Step 6: Final answer
    x = 8,377.52

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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.