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Finding the Fourth Proportional to 27,308.99, 40,925.41 and 20,640.02

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Solution

The fourth proportional to 27,308.99, 40,925.41 and 20,640.02 is: 30,931.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,308.99 : 40,925.41 = 20,640.02 : x
  2. Step 2: Convert to fraction form
    27,308.99/40,925.41 = 20,640.02/x
  3. Step 3: Cross multiply
    27,308.99x = 40,925.41 × 20,640.02
  4. Step 4: Simplify right side
    27,308.99x = 844,701,024.68
  5. Step 5: Solve for x
    x = 844,701,024.68/27,308.99
  6. Step 6: Final answer
    x = 30,931.24

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