Home / 20,072.55-30,096.83-12,286.95

Finding the Fourth Proportional to 20,072.55, 30,096.83 and 12,286.95

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Solution

The fourth proportional to 20,072.55, 30,096.83 and 12,286.95 is: 18,423.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,072.55 : 30,096.83 = 12,286.95 : x
  2. Step 2: Convert to fraction form
    20,072.55/30,096.83 = 12,286.95/x
  3. Step 3: Cross multiply
    20,072.55x = 30,096.83 × 12,286.95
  4. Step 4: Simplify right side
    20,072.55x = 369,798,183.93
  5. Step 5: Solve for x
    x = 369,798,183.93/20,072.55
  6. Step 6: Final answer
    x = 18,423.08

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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.