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Finding the Fourth Proportional to 21,907.61, 30,232.47 and 11,836.02

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Solution

The fourth proportional to 21,907.61, 30,232.47 and 11,836.02 is: 16,333.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,907.61 : 30,232.47 = 11,836.02 : x
  2. Step 2: Convert to fraction form
    21,907.61/30,232.47 = 11,836.02/x
  3. Step 3: Cross multiply
    21,907.61x = 30,232.47 × 11,836.02
  4. Step 4: Simplify right side
    21,907.61x = 357,832,081.80
  5. Step 5: Solve for x
    x = 357,832,081.80/21,907.61
  6. Step 6: Final answer
    x = 16,333.69

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