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Finding the Fourth Proportional to 39,979.63, 60,006.03 and 20,271.79

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Solution

The fourth proportional to 39,979.63, 60,006.03 and 20,271.79 is: 30,426.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,979.63 : 60,006.03 = 20,271.79 : x
  2. Step 2: Convert to fraction form
    39,979.63/60,006.03 = 20,271.79/x
  3. Step 3: Cross multiply
    39,979.63x = 60,006.03 × 20,271.79
  4. Step 4: Simplify right side
    39,979.63x = 1,216,429,638.89
  5. Step 5: Solve for x
    x = 1,216,429,638.89/39,979.63
  6. Step 6: Final answer
    x = 30,426.24

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