Home / 27,680.28-38,198.88-15,105

Finding the Fourth Proportional to 27,680.28, 38,198.88 and 15,105

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Solution

The fourth proportional to 27,680.28, 38,198.88 and 15,105 is: 20,844.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,680.28 : 38,198.88 = 15,105 : x
  2. Step 2: Convert to fraction form
    27,680.28/38,198.88 = 15,105/x
  3. Step 3: Cross multiply
    27,680.28x = 38,198.88 × 15,105
  4. Step 4: Simplify right side
    27,680.28x = 576,994,082.40
  5. Step 5: Solve for x
    x = 576,994,082.40/27,680.28
  6. Step 6: Final answer
    x = 20,844.95

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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.