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Finding the Fourth Proportional to 40,970.98, 61,456.49 and 12,893.55

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Solution

The fourth proportional to 40,970.98, 61,456.49 and 12,893.55 is: 19,340.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,970.98 : 61,456.49 = 12,893.55 : x
  2. Step 2: Convert to fraction form
    40,970.98/61,456.49 = 12,893.55/x
  3. Step 3: Cross multiply
    40,970.98x = 61,456.49 × 12,893.55
  4. Step 4: Simplify right side
    40,970.98x = 792,392,080.06
  5. Step 5: Solve for x
    x = 792,392,080.06/40,970.98
  6. Step 6: Final answer
    x = 19,340.32

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