Home / 20,076.03-27,704.85-11,123.53

Finding the Fourth Proportional to 20,076.03, 27,704.85 and 11,123.53

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Solution

The fourth proportional to 20,076.03, 27,704.85 and 11,123.53 is: 15,350.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,076.03 : 27,704.85 = 11,123.53 : x
  2. Step 2: Convert to fraction form
    20,076.03/27,704.85 = 11,123.53/x
  3. Step 3: Cross multiply
    20,076.03x = 27,704.85 × 11,123.53
  4. Step 4: Simplify right side
    20,076.03x = 308,175,634.79
  5. Step 5: Solve for x
    x = 308,175,634.79/20,076.03
  6. Step 6: Final answer
    x = 15,350.43

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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.