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Finding the Fourth Proportional to 22,076.48, 30,450.12 and 14,990.60

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Solution

The fourth proportional to 22,076.48, 30,450.12 and 14,990.60 is: 20,676.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,076.48 : 30,450.12 = 14,990.60 : x
  2. Step 2: Convert to fraction form
    22,076.48/30,450.12 = 14,990.60/x
  3. Step 3: Cross multiply
    22,076.48x = 30,450.12 × 14,990.60
  4. Step 4: Simplify right side
    22,076.48x = 456,465,568.87
  5. Step 5: Solve for x
    x = 456,465,568.87/22,076.48
  6. Step 6: Final answer
    x = 20,676.56

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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.