Home / 19,818.11-29,732.11-13,986.11

Finding the Fourth Proportional to 19,818.11, 29,732.11 and 13,986.11

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Solution

The fourth proportional to 19,818.11, 29,732.11 and 13,986.11 is: 20,982.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,818.11 : 29,732.11 = 13,986.11 : x
  2. Step 2: Convert to fraction form
    19,818.11/29,732.11 = 13,986.11/x
  3. Step 3: Cross multiply
    19,818.11x = 29,732.11 × 13,986.11
  4. Step 4: Simplify right side
    19,818.11x = 415,836,377.37
  5. Step 5: Solve for x
    x = 415,836,377.37/19,818.11
  6. Step 6: Final answer
    x = 20,982.65

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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.