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Finding the Fourth Proportional to 32,645.92, 48,969.20 and 12,929.28

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Solution

The fourth proportional to 32,645.92, 48,969.20 and 12,929.28 is: 19,394.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,645.92 : 48,969.20 = 12,929.28 : x
  2. Step 2: Convert to fraction form
    32,645.92/48,969.20 = 12,929.28/x
  3. Step 3: Cross multiply
    32,645.92x = 48,969.20 × 12,929.28
  4. Step 4: Simplify right side
    32,645.92x = 633,136,498.18
  5. Step 5: Solve for x
    x = 633,136,498.18/32,645.92
  6. Step 6: Final answer
    x = 19,394.05

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