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Finding the Fourth Proportional to 21,923.68, 30,254.81 and 11,852.09

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Solution

The fourth proportional to 21,923.68, 30,254.81 and 11,852.09 is: 16,355.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,923.68 : 30,254.81 = 11,852.09 : x
  2. Step 2: Convert to fraction form
    21,923.68/30,254.81 = 11,852.09/x
  3. Step 3: Cross multiply
    21,923.68x = 30,254.81 × 11,852.09
  4. Step 4: Simplify right side
    21,923.68x = 358,582,731.05
  5. Step 5: Solve for x
    x = 358,582,731.05/21,923.68
  6. Step 6: Final answer
    x = 16,355.96

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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.