Home / 20,380.30-30,567.17-5,585.75

Finding the Fourth Proportional to 20,380.30, 30,567.17 and 5,585.75

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Solution

The fourth proportional to 20,380.30, 30,567.17 and 5,585.75 is: 8,377.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,380.30 : 30,567.17 = 5,585.75 : x
  2. Step 2: Convert to fraction form
    20,380.30/30,567.17 = 5,585.75/x
  3. Step 3: Cross multiply
    20,380.30x = 30,567.17 × 5,585.75
  4. Step 4: Simplify right side
    20,380.30x = 170,740,541.90
  5. Step 5: Solve for x
    x = 170,740,541.90/20,380.30
  6. Step 6: Final answer
    x = 8,377.73

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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.