Home / 20,076.16-30,118.28-6,929.04

Finding the Fourth Proportional to 20,076.16, 30,118.28 and 6,929.04

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Solution

The fourth proportional to 20,076.16, 30,118.28 and 6,929.04 is: 10,394.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,076.16 : 30,118.28 = 6,929.04 : x
  2. Step 2: Convert to fraction form
    20,076.16/30,118.28 = 6,929.04/x
  3. Step 3: Cross multiply
    20,076.16x = 30,118.28 × 6,929.04
  4. Step 4: Simplify right side
    20,076.16x = 208,690,766.85
  5. Step 5: Solve for x
    x = 208,690,766.85/20,076.16
  6. Step 6: Final answer
    x = 10,394.95

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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.