Home / 20,076.35-27,704.62-11,578.83

Finding the Fourth Proportional to 20,076.35, 27,704.62 and 11,578.83

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Solution

The fourth proportional to 20,076.35, 27,704.62 and 11,578.83 is: 15,978.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,076.35 : 27,704.62 = 11,578.83 : x
  2. Step 2: Convert to fraction form
    20,076.35/27,704.62 = 11,578.83/x
  3. Step 3: Cross multiply
    20,076.35x = 27,704.62 × 11,578.83
  4. Step 4: Simplify right side
    20,076.35x = 320,787,056.25
  5. Step 5: Solve for x
    x = 320,787,056.25/20,076.35
  6. Step 6: Final answer
    x = 15,978.36

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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.