Home / 20,230.75-30,346.13-6,379.75

Finding the Fourth Proportional to 20,230.75, 30,346.13 and 6,379.75

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Solution

The fourth proportional to 20,230.75, 30,346.13 and 6,379.75 is: 9,569.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,230.75 : 30,346.13 = 6,379.75 : x
  2. Step 2: Convert to fraction form
    20,230.75/30,346.13 = 6,379.75/x
  3. Step 3: Cross multiply
    20,230.75x = 30,346.13 × 6,379.75
  4. Step 4: Simplify right side
    20,230.75x = 193,600,722.87
  5. Step 5: Solve for x
    x = 193,600,722.87/20,230.75
  6. Step 6: Final answer
    x = 9,569.63

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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.