Home / 28,428.44-42,644.68-8,704.43

Finding the Fourth Proportional to 28,428.44, 42,644.68 and 8,704.43

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Solution

The fourth proportional to 28,428.44, 42,644.68 and 8,704.43 is: 13,057.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,428.44 : 42,644.68 = 8,704.43 : x
  2. Step 2: Convert to fraction form
    28,428.44/42,644.68 = 8,704.43/x
  3. Step 3: Cross multiply
    28,428.44x = 42,644.68 × 8,704.43
  4. Step 4: Simplify right side
    28,428.44x = 371,197,556.87
  5. Step 5: Solve for x
    x = 371,197,556.87/28,428.44
  6. Step 6: Final answer
    x = 13,057.26

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Why These Related Problems?

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