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Finding the Fourth Proportional to 39,000.69, 53,820.99 and 21,095.64

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Solution

The fourth proportional to 39,000.69, 53,820.99 and 21,095.64 is: 29,112.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,000.69 : 53,820.99 = 21,095.64 : x
  2. Step 2: Convert to fraction form
    39,000.69/53,820.99 = 21,095.64/x
  3. Step 3: Cross multiply
    39,000.69x = 53,820.99 × 21,095.64
  4. Step 4: Simplify right side
    39,000.69x = 1,135,388,229.48
  5. Step 5: Solve for x
    x = 1,135,388,229.48/39,000.69
  6. Step 6: Final answer
    x = 29,112.00

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