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Finding the Fourth Proportional to 16,290.99, 24,448.77 and 11,919.72

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Solution

The fourth proportional to 16,290.99, 24,448.77 and 11,919.72 is: 17,888.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,290.99 : 24,448.77 = 11,919.72 : x
  2. Step 2: Convert to fraction form
    16,290.99/24,448.77 = 11,919.72/x
  3. Step 3: Cross multiply
    16,290.99x = 24,448.77 × 11,919.72
  4. Step 4: Simplify right side
    16,290.99x = 291,422,584.43
  5. Step 5: Solve for x
    x = 291,422,584.43/16,290.99
  6. Step 6: Final answer
    x = 17,888.57

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