Home / 20,849.04-28,768.95-11,895.96

Finding the Fourth Proportional to 20,849.04, 28,768.95 and 11,895.96

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Solution

The fourth proportional to 20,849.04, 28,768.95 and 11,895.96 is: 16,414.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,849.04 : 28,768.95 = 11,895.96 : x
  2. Step 2: Convert to fraction form
    20,849.04/28,768.95 = 11,895.96/x
  3. Step 3: Cross multiply
    20,849.04x = 28,768.95 × 11,895.96
  4. Step 4: Simplify right side
    20,849.04x = 342,234,278.44
  5. Step 5: Solve for x
    x = 342,234,278.44/20,849.04
  6. Step 6: Final answer
    x = 16,414.87

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.