Home / 20,202.20-30,304.68-6,869.76

Finding the Fourth Proportional to 20,202.20, 30,304.68 and 6,869.76

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Solution

The fourth proportional to 20,202.20, 30,304.68 and 6,869.76 is: 10,305.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,202.20 : 30,304.68 = 6,869.76 : x
  2. Step 2: Convert to fraction form
    20,202.20/30,304.68 = 6,869.76/x
  3. Step 3: Cross multiply
    20,202.20x = 30,304.68 × 6,869.76
  4. Step 4: Simplify right side
    20,202.20x = 208,185,878.48
  5. Step 5: Solve for x
    x = 208,185,878.48/20,202.20
  6. Step 6: Final answer
    x = 10,305.11

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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.