Home / 20,072.28-30,093.54-12,176.60

Finding the Fourth Proportional to 20,072.28, 30,093.54 and 12,176.60

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Solution

The fourth proportional to 20,072.28, 30,093.54 and 12,176.60 is: 18,255.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,072.28 : 30,093.54 = 12,176.60 : x
  2. Step 2: Convert to fraction form
    20,072.28/30,093.54 = 12,176.60/x
  3. Step 3: Cross multiply
    20,072.28x = 30,093.54 × 12,176.60
  4. Step 4: Simplify right side
    20,072.28x = 366,436,999.16
  5. Step 5: Solve for x
    x = 366,436,999.16/20,072.28
  6. Step 6: Final answer
    x = 18,255.87

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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.