Home / 21,321.94-29,436.33-14,164.13

Finding the Fourth Proportional to 21,321.94, 29,436.33 and 14,164.13

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Solution

The fourth proportional to 21,321.94, 29,436.33 and 14,164.13 is: 19,554.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,321.94 : 29,436.33 = 14,164.13 : x
  2. Step 2: Convert to fraction form
    21,321.94/29,436.33 = 14,164.13/x
  3. Step 3: Cross multiply
    21,321.94x = 29,436.33 × 14,164.13
  4. Step 4: Simplify right side
    21,321.94x = 416,940,004.84
  5. Step 5: Solve for x
    x = 416,940,004.84/21,321.94
  6. Step 6: Final answer
    x = 19,554.51

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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.