Home / 25,849.04-38,781.32-8,078.98

Finding the Fourth Proportional to 25,849.04, 38,781.32 and 8,078.98

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Solution

The fourth proportional to 25,849.04, 38,781.32 and 8,078.98 is: 12,120.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,849.04 : 38,781.32 = 8,078.98 : x
  2. Step 2: Convert to fraction form
    25,849.04/38,781.32 = 8,078.98/x
  3. Step 3: Cross multiply
    25,849.04x = 38,781.32 × 8,078.98
  4. Step 4: Simplify right side
    25,849.04x = 313,313,508.65
  5. Step 5: Solve for x
    x = 313,313,508.65/25,849.04
  6. Step 6: Final answer
    x = 12,120.90

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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.