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Finding the Fourth Proportional to 39,978.43, 59,936.82 and 15,017.95

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Solution

The fourth proportional to 39,978.43, 59,936.82 and 15,017.95 is: 22,515.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,978.43 : 59,936.82 = 15,017.95 : x
  2. Step 2: Convert to fraction form
    39,978.43/59,936.82 = 15,017.95/x
  3. Step 3: Cross multiply
    39,978.43x = 59,936.82 × 15,017.95
  4. Step 4: Simplify right side
    39,978.43x = 900,128,165.92
  5. Step 5: Solve for x
    x = 900,128,165.92/39,978.43
  6. Step 6: Final answer
    x = 22,515.35

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