Home / 16,920.25-25,382.80-5,234.38

Finding the Fourth Proportional to 16,920.25, 25,382.80 and 5,234.38

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Solution

The fourth proportional to 16,920.25, 25,382.80 and 5,234.38 is: 7,852.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,920.25 : 25,382.80 = 5,234.38 : x
  2. Step 2: Convert to fraction form
    16,920.25/25,382.80 = 5,234.38/x
  3. Step 3: Cross multiply
    16,920.25x = 25,382.80 × 5,234.38
  4. Step 4: Simplify right side
    16,920.25x = 132,863,093.75
  5. Step 5: Solve for x
    x = 132,863,093.75/16,920.25
  6. Step 6: Final answer
    x = 7,852.32

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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.