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Finding the Fourth Proportional to 19,930.58, 29,899.98 and 16,666.48

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Solution

The fourth proportional to 19,930.58, 29,899.98 and 16,666.48 is: 25,003.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,930.58 : 29,899.98 = 16,666.48 : x
  2. Step 2: Convert to fraction form
    19,930.58/29,899.98 = 16,666.48/x
  3. Step 3: Cross multiply
    19,930.58x = 29,899.98 × 16,666.48
  4. Step 4: Simplify right side
    19,930.58x = 498,327,418.67
  5. Step 5: Solve for x
    x = 498,327,418.67/19,930.58
  6. Step 6: Final answer
    x = 25,003.16

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