Home / 27,932.78-38,546.79-15,186.30

Finding the Fourth Proportional to 27,932.78, 38,546.79 and 15,186.30

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Solution

The fourth proportional to 27,932.78, 38,546.79 and 15,186.30 is: 20,956.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,932.78 : 38,546.79 = 15,186.30 : x
  2. Step 2: Convert to fraction form
    27,932.78/38,546.79 = 15,186.30/x
  3. Step 3: Cross multiply
    27,932.78x = 38,546.79 × 15,186.30
  4. Step 4: Simplify right side
    27,932.78x = 585,382,915.48
  5. Step 5: Solve for x
    x = 585,382,915.48/27,932.78
  6. Step 6: Final answer
    x = 20,956.84

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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.