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Finding the Fourth Proportional to 16,740, 25,110.48 and 4,428

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Solution

The fourth proportional to 16,740, 25,110.48 and 4,428 is: 6,642.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,740 : 25,110.48 = 4,428 : x
  2. Step 2: Convert to fraction form
    16,740/25,110.48 = 4,428/x
  3. Step 3: Cross multiply
    16,740x = 25,110.48 × 4,428
  4. Step 4: Simplify right side
    16,740x = 111,189,205.44
  5. Step 5: Solve for x
    x = 111,189,205.44/16,740
  6. Step 6: Final answer
    x = 6,642.13

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.