Home / 21,569.61-29,766.66-12,138.51

Finding the Fourth Proportional to 21,569.61, 29,766.66 and 12,138.51

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Solution

The fourth proportional to 21,569.61, 29,766.66 and 12,138.51 is: 16,751.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,569.61 : 29,766.66 = 12,138.51 : x
  2. Step 2: Convert to fraction form
    21,569.61/29,766.66 = 12,138.51/x
  3. Step 3: Cross multiply
    21,569.61x = 29,766.66 × 12,138.51
  4. Step 4: Simplify right side
    21,569.61x = 361,322,900.08
  5. Step 5: Solve for x
    x = 361,322,900.08/21,569.61
  6. Step 6: Final answer
    x = 16,751.48

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