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Finding the Fourth Proportional to 21,948.73, 32,928.33 and 7,157.66

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Solution

The fourth proportional to 21,948.73, 32,928.33 and 7,157.66 is: 10,738.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,948.73 : 32,928.33 = 7,157.66 : x
  2. Step 2: Convert to fraction form
    21,948.73/32,928.33 = 7,157.66/x
  3. Step 3: Cross multiply
    21,948.73x = 32,928.33 × 7,157.66
  4. Step 4: Simplify right side
    21,948.73x = 235,689,790.51
  5. Step 5: Solve for x
    x = 235,689,790.51/21,948.73
  6. Step 6: Final answer
    x = 10,738.20

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