Home / 16,857.80-25,286.70-16,639.10

Finding the Fourth Proportional to 16,857.80, 25,286.70 and 16,639.10

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Solution

The fourth proportional to 16,857.80, 25,286.70 and 16,639.10 is: 24,958.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,857.80 : 25,286.70 = 16,639.10 : x
  2. Step 2: Convert to fraction form
    16,857.80/25,286.70 = 16,639.10/x
  3. Step 3: Cross multiply
    16,857.80x = 25,286.70 × 16,639.10
  4. Step 4: Simplify right side
    16,857.80x = 420,747,929.97
  5. Step 5: Solve for x
    x = 420,747,929.97/16,857.80
  6. Step 6: Final answer
    x = 24,958.65

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.