Home / 20,076.22-27,704.81-11,123.69

Finding the Fourth Proportional to 20,076.22, 27,704.81 and 11,123.69

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Solution

The fourth proportional to 20,076.22, 27,704.81 and 11,123.69 is: 15,350.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,076.22 : 27,704.81 = 11,123.69 : x
  2. Step 2: Convert to fraction form
    20,076.22/27,704.81 = 11,123.69/x
  3. Step 3: Cross multiply
    20,076.22x = 27,704.81 × 11,123.69
  4. Step 4: Simplify right side
    20,076.22x = 308,179,579.42
  5. Step 5: Solve for x
    x = 308,179,579.42/20,076.22
  6. Step 6: Final answer
    x = 15,350.48

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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.