Home / 20,380.83-30,571.22-5,590.91

Finding the Fourth Proportional to 20,380.83, 30,571.22 and 5,590.91

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Solution

The fourth proportional to 20,380.83, 30,571.22 and 5,590.91 is: 8,386.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,380.83 : 30,571.22 = 5,590.91 : x
  2. Step 2: Convert to fraction form
    20,380.83/30,571.22 = 5,590.91/x
  3. Step 3: Cross multiply
    20,380.83x = 30,571.22 × 5,590.91
  4. Step 4: Simplify right side
    20,380.83x = 170,920,758.80
  5. Step 5: Solve for x
    x = 170,920,758.80/20,380.83
  6. Step 6: Final answer
    x = 8,386.35

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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.