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Finding the Fourth Proportional to 18,529.77, 25,571.39 and 10,145.73

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Solution

The fourth proportional to 18,529.77, 25,571.39 and 10,145.73 is: 14,001.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,529.77 : 25,571.39 = 10,145.73 : x
  2. Step 2: Convert to fraction form
    18,529.77/25,571.39 = 10,145.73/x
  3. Step 3: Cross multiply
    18,529.77x = 25,571.39 × 10,145.73
  4. Step 4: Simplify right side
    18,529.77x = 259,440,367.94
  5. Step 5: Solve for x
    x = 259,440,367.94/18,529.77
  6. Step 6: Final answer
    x = 14,001.27

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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.