Home / 27,578.78-38,049.42-16,964.54

Finding the Fourth Proportional to 27,578.78, 38,049.42 and 16,964.54

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Solution

The fourth proportional to 27,578.78, 38,049.42 and 16,964.54 is: 23,405.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,578.78 : 38,049.42 = 16,964.54 : x
  2. Step 2: Convert to fraction form
    27,578.78/38,049.42 = 16,964.54/x
  3. Step 3: Cross multiply
    27,578.78x = 38,049.42 × 16,964.54
  4. Step 4: Simplify right side
    27,578.78x = 645,490,907.57
  5. Step 5: Solve for x
    x = 645,490,907.57/27,578.78
  6. Step 6: Final answer
    x = 23,405.35

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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.