Home / 27,908.28-38,513.24-15,161.56

Finding the Fourth Proportional to 27,908.28, 38,513.24 and 15,161.56

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Solution

The fourth proportional to 27,908.28, 38,513.24 and 15,161.56 is: 20,922.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,908.28 : 38,513.24 = 15,161.56 : x
  2. Step 2: Convert to fraction form
    27,908.28/38,513.24 = 15,161.56/x
  3. Step 3: Cross multiply
    27,908.28x = 38,513.24 × 15,161.56
  4. Step 4: Simplify right side
    27,908.28x = 583,920,799.05
  5. Step 5: Solve for x
    x = 583,920,799.05/27,908.28
  6. Step 6: Final answer
    x = 20,922.85

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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.