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Finding the Fourth Proportional to 21,968.25, 32,952.93 and 7,929.48

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Solution

The fourth proportional to 21,968.25, 32,952.93 and 7,929.48 is: 11,894.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,968.25 : 32,952.93 = 7,929.48 : x
  2. Step 2: Convert to fraction form
    21,968.25/32,952.93 = 7,929.48/x
  3. Step 3: Cross multiply
    21,968.25x = 32,952.93 × 7,929.48
  4. Step 4: Simplify right side
    21,968.25x = 261,299,599.38
  5. Step 5: Solve for x
    x = 261,299,599.38/21,968.25
  6. Step 6: Final answer
    x = 11,894.42

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