Home / 20,076.59-27,704.94-11,579.06

Finding the Fourth Proportional to 20,076.59, 27,704.94 and 11,579.06

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Solution

The fourth proportional to 20,076.59, 27,704.94 and 11,579.06 is: 15,978.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,076.59 : 27,704.94 = 11,579.06 : x
  2. Step 2: Convert to fraction form
    20,076.59/27,704.94 = 11,579.06/x
  3. Step 3: Cross multiply
    20,076.59x = 27,704.94 × 11,579.06
  4. Step 4: Simplify right side
    20,076.59x = 320,797,231.82
  5. Step 5: Solve for x
    x = 320,797,231.82/20,076.59
  6. Step 6: Final answer
    x = 15,978.68

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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.