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Finding the Fourth Proportional to 20,573.88, 30,860.82 and 5,784.30

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Solution

The fourth proportional to 20,573.88, 30,860.82 and 5,784.30 is: 8,676.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,573.88 : 30,860.82 = 5,784.30 : x
  2. Step 2: Convert to fraction form
    20,573.88/30,860.82 = 5,784.30/x
  3. Step 3: Cross multiply
    20,573.88x = 30,860.82 × 5,784.30
  4. Step 4: Simplify right side
    20,573.88x = 178,508,241.13
  5. Step 5: Solve for x
    x = 178,508,241.13/20,573.88
  6. Step 6: Final answer
    x = 8,676.45

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