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Finding the Fourth Proportional to 39,391.84, 54,360.90 and 21,487.23

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Solution

The fourth proportional to 39,391.84, 54,360.90 and 21,487.23 is: 29,652.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,391.84 : 54,360.90 = 21,487.23 : x
  2. Step 2: Convert to fraction form
    39,391.84/54,360.90 = 21,487.23/x
  3. Step 3: Cross multiply
    39,391.84x = 54,360.90 × 21,487.23
  4. Step 4: Simplify right side
    39,391.84x = 1,168,064,889.50
  5. Step 5: Solve for x
    x = 1,168,064,889.50/39,391.84
  6. Step 6: Final answer
    x = 29,652.46

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