Home / 20,146.36-30,209.11-9,043.49

Finding the Fourth Proportional to 20,146.36, 30,209.11 and 9,043.49

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Solution

The fourth proportional to 20,146.36, 30,209.11 and 9,043.49 is: 13,560.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,146.36 : 30,209.11 = 9,043.49 : x
  2. Step 2: Convert to fraction form
    20,146.36/30,209.11 = 9,043.49/x
  3. Step 3: Cross multiply
    20,146.36x = 30,209.11 × 9,043.49
  4. Step 4: Simplify right side
    20,146.36x = 273,195,815.73
  5. Step 5: Solve for x
    x = 273,195,815.73/20,146.36
  6. Step 6: Final answer
    x = 13,560.55

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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.