Home / 20,360.96-30,542.04-7,707.95

Finding the Fourth Proportional to 20,360.96, 30,542.04 and 7,707.95

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Solution

The fourth proportional to 20,360.96, 30,542.04 and 7,707.95 is: 11,562.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,360.96 : 30,542.04 = 7,707.95 : x
  2. Step 2: Convert to fraction form
    20,360.96/30,542.04 = 7,707.95/x
  3. Step 3: Cross multiply
    20,360.96x = 30,542.04 × 7,707.95
  4. Step 4: Simplify right side
    20,360.96x = 235,416,517.22
  5. Step 5: Solve for x
    x = 235,416,517.22/20,360.96
  6. Step 6: Final answer
    x = 11,562.15

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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.