Home / 20,123.43-27,771.54-11,627.10

Finding the Fourth Proportional to 20,123.43, 27,771.54 and 11,627.10

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Solution

The fourth proportional to 20,123.43, 27,771.54 and 11,627.10 is: 16,046.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,123.43 : 27,771.54 = 11,627.10 : x
  2. Step 2: Convert to fraction form
    20,123.43/27,771.54 = 11,627.10/x
  3. Step 3: Cross multiply
    20,123.43x = 27,771.54 × 11,627.10
  4. Step 4: Simplify right side
    20,123.43x = 322,902,472.73
  5. Step 5: Solve for x
    x = 322,902,472.73/20,123.43
  6. Step 6: Final answer
    x = 16,046.10

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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.