Home / 27,849.27-38,431.49-15,749.56

Finding the Fourth Proportional to 27,849.27, 38,431.49 and 15,749.56

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Solution

The fourth proportional to 27,849.27, 38,431.49 and 15,749.56 is: 21,734.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,849.27 : 38,431.49 = 15,749.56 : x
  2. Step 2: Convert to fraction form
    27,849.27/38,431.49 = 15,749.56/x
  3. Step 3: Cross multiply
    27,849.27x = 38,431.49 × 15,749.56
  4. Step 4: Simplify right side
    27,849.27x = 605,279,057.64
  5. Step 5: Solve for x
    x = 605,279,057.64/27,849.27
  6. Step 6: Final answer
    x = 21,734.11

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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.