Home / 21,149.04-29,185.92-11,717.76

Finding the Fourth Proportional to 21,149.04, 29,185.92 and 11,717.76

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Solution

The fourth proportional to 21,149.04, 29,185.92 and 11,717.76 is: 16,170.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,149.04 : 29,185.92 = 11,717.76 : x
  2. Step 2: Convert to fraction form
    21,149.04/29,185.92 = 11,717.76/x
  3. Step 3: Cross multiply
    21,149.04x = 29,185.92 × 11,717.76
  4. Step 4: Simplify right side
    21,149.04x = 341,993,605.94
  5. Step 5: Solve for x
    x = 341,993,605.94/21,149.04
  6. Step 6: Final answer
    x = 16,170.64

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.