Home / 27,123.66-37,431.32-15,189.42

Finding the Fourth Proportional to 27,123.66, 37,431.32 and 15,189.42

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Solution

The fourth proportional to 27,123.66, 37,431.32 and 15,189.42 is: 20,961.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,123.66 : 37,431.32 = 15,189.42 : x
  2. Step 2: Convert to fraction form
    27,123.66/37,431.32 = 15,189.42/x
  3. Step 3: Cross multiply
    27,123.66x = 37,431.32 × 15,189.42
  4. Step 4: Simplify right side
    27,123.66x = 568,560,105.05
  5. Step 5: Solve for x
    x = 568,560,105.05/27,123.66
  6. Step 6: Final answer
    x = 20,961.78

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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.