Home / 20,245.72-27,939.68-11,293.03

Finding the Fourth Proportional to 20,245.72, 27,939.68 and 11,293.03

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Solution

The fourth proportional to 20,245.72, 27,939.68 and 11,293.03 is: 15,584.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,245.72 : 27,939.68 = 11,293.03 : x
  2. Step 2: Convert to fraction form
    20,245.72/27,939.68 = 11,293.03/x
  3. Step 3: Cross multiply
    20,245.72x = 27,939.68 × 11,293.03
  4. Step 4: Simplify right side
    20,245.72x = 315,523,728.76
  5. Step 5: Solve for x
    x = 315,523,728.76/20,245.72
  6. Step 6: Final answer
    x = 15,584.71

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.