Home / 21,020.25-29,008.14-11,589.15

Finding the Fourth Proportional to 21,020.25, 29,008.14 and 11,589.15

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Solution

The fourth proportional to 21,020.25, 29,008.14 and 11,589.15 is: 15,993.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,020.25 : 29,008.14 = 11,589.15 : x
  2. Step 2: Convert to fraction form
    21,020.25/29,008.14 = 11,589.15/x
  3. Step 3: Cross multiply
    21,020.25x = 29,008.14 × 11,589.15
  4. Step 4: Simplify right side
    21,020.25x = 336,179,685.68
  5. Step 5: Solve for x
    x = 336,179,685.68/21,020.25
  6. Step 6: Final answer
    x = 15,993.13

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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.