Home / 27,623.68-38,121.84-15,049.12

Finding the Fourth Proportional to 27,623.68, 38,121.84 and 15,049.12

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Solution

The fourth proportional to 27,623.68, 38,121.84 and 15,049.12 is: 20,768.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,623.68 : 38,121.84 = 15,049.12 : x
  2. Step 2: Convert to fraction form
    27,623.68/38,121.84 = 15,049.12/x
  3. Step 3: Cross multiply
    27,623.68x = 38,121.84 × 15,049.12
  4. Step 4: Simplify right side
    27,623.68x = 573,700,144.78
  5. Step 5: Solve for x
    x = 573,700,144.78/27,623.68
  6. Step 6: Final answer
    x = 20,768.42

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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.