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Finding the Fourth Proportional to 21,850.53, 32,788.77 and 20,466.79

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Solution

The fourth proportional to 21,850.53, 32,788.77 and 20,466.79 is: 30,712.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,850.53 : 32,788.77 = 20,466.79 : x
  2. Step 2: Convert to fraction form
    21,850.53/32,788.77 = 20,466.79/x
  3. Step 3: Cross multiply
    21,850.53x = 32,788.77 × 20,466.79
  4. Step 4: Simplify right side
    21,850.53x = 671,080,711.23
  5. Step 5: Solve for x
    x = 671,080,711.23/21,850.53
  6. Step 6: Final answer
    x = 30,712.34

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