Home / 20,047.41-30,077.60-11,279.97

Finding the Fourth Proportional to 20,047.41, 30,077.60 and 11,279.97

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Solution

The fourth proportional to 20,047.41, 30,077.60 and 11,279.97 is: 16,923.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,047.41 : 30,077.60 = 11,279.97 : x
  2. Step 2: Convert to fraction form
    20,047.41/30,077.60 = 11,279.97/x
  3. Step 3: Cross multiply
    20,047.41x = 30,077.60 × 11,279.97
  4. Step 4: Simplify right side
    20,047.41x = 339,274,369.27
  5. Step 5: Solve for x
    x = 339,274,369.27/20,047.41
  6. Step 6: Final answer
    x = 16,923.60

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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.