Home / 20,627.20-30,914.83-11,247.71

Finding the Fourth Proportional to 20,627.20, 30,914.83 and 11,247.71

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Solution

The fourth proportional to 20,627.20, 30,914.83 and 11,247.71 is: 16,857.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,627.20 : 30,914.83 = 11,247.71 : x
  2. Step 2: Convert to fraction form
    20,627.20/30,914.83 = 11,247.71/x
  3. Step 3: Cross multiply
    20,627.20x = 30,914.83 × 11,247.71
  4. Step 4: Simplify right side
    20,627.20x = 347,720,902.02
  5. Step 5: Solve for x
    x = 347,720,902.02/20,627.20
  6. Step 6: Final answer
    x = 16,857.40

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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.