Home / 20,065.29-27,676.35-13,766.73

Finding the Fourth Proportional to 20,065.29, 27,676.35 and 13,766.73

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Solution

The fourth proportional to 20,065.29, 27,676.35 and 13,766.73 is: 18,988.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,065.29 : 27,676.35 = 13,766.73 : x
  2. Step 2: Convert to fraction form
    20,065.29/27,676.35 = 13,766.73/x
  3. Step 3: Cross multiply
    20,065.29x = 27,676.35 × 13,766.73
  4. Step 4: Simplify right side
    20,065.29x = 381,012,837.84
  5. Step 5: Solve for x
    x = 381,012,837.84/20,065.29
  6. Step 6: Final answer
    x = 18,988.65

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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.