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Finding the Fourth Proportional to 16,620.45, 22,924.49 and 9,900.89

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Solution

The fourth proportional to 16,620.45, 22,924.49 and 9,900.89 is: 13,656.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,620.45 : 22,924.49 = 9,900.89 : x
  2. Step 2: Convert to fraction form
    16,620.45/22,924.49 = 9,900.89/x
  3. Step 3: Cross multiply
    16,620.45x = 22,924.49 × 9,900.89
  4. Step 4: Simplify right side
    16,620.45x = 226,972,935.86
  5. Step 5: Solve for x
    x = 226,972,935.86/16,620.45
  6. Step 6: Final answer
    x = 13,656.24

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.