Home / 20,986.23-31,484.43-6,194.82

Finding the Fourth Proportional to 20,986.23, 31,484.43 and 6,194.82

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Solution

The fourth proportional to 20,986.23, 31,484.43 and 6,194.82 is: 9,293.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,986.23 : 31,484.43 = 6,194.82 : x
  2. Step 2: Convert to fraction form
    20,986.23/31,484.43 = 6,194.82/x
  3. Step 3: Cross multiply
    20,986.23x = 31,484.43 × 6,194.82
  4. Step 4: Simplify right side
    20,986.23x = 195,040,376.65
  5. Step 5: Solve for x
    x = 195,040,376.65/20,986.23
  6. Step 6: Final answer
    x = 9,293.73

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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.