Home / 20,076.62-27,704.57-11,123.59

Finding the Fourth Proportional to 20,076.62, 27,704.57 and 11,123.59

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Solution

The fourth proportional to 20,076.62, 27,704.57 and 11,123.59 is: 15,349.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,076.62 : 27,704.57 = 11,123.59 : x
  2. Step 2: Convert to fraction form
    20,076.62/27,704.57 = 11,123.59/x
  3. Step 3: Cross multiply
    20,076.62x = 27,704.57 × 11,123.59
  4. Step 4: Simplify right side
    20,076.62x = 308,174,083.67
  5. Step 5: Solve for x
    x = 308,174,083.67/20,076.62
  6. Step 6: Final answer
    x = 15,349.90

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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.