Home / 20,195.75-30,294.63-7,716.85

Finding the Fourth Proportional to 20,195.75, 30,294.63 and 7,716.85

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Solution

The fourth proportional to 20,195.75, 30,294.63 and 7,716.85 is: 11,575.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,195.75 : 30,294.63 = 7,716.85 : x
  2. Step 2: Convert to fraction form
    20,195.75/30,294.63 = 7,716.85/x
  3. Step 3: Cross multiply
    20,195.75x = 30,294.63 × 7,716.85
  4. Step 4: Simplify right side
    20,195.75x = 233,779,039.78
  5. Step 5: Solve for x
    x = 233,779,039.78/20,195.75
  6. Step 6: Final answer
    x = 11,575.65

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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.