Home / 21,429.46-32,149.32-8,942.54

Finding the Fourth Proportional to 21,429.46, 32,149.32 and 8,942.54

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Solution

The fourth proportional to 21,429.46, 32,149.32 and 8,942.54 is: 13,415.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,429.46 : 32,149.32 = 8,942.54 : x
  2. Step 2: Convert to fraction form
    21,429.46/32,149.32 = 8,942.54/x
  3. Step 3: Cross multiply
    21,429.46x = 32,149.32 × 8,942.54
  4. Step 4: Simplify right side
    21,429.46x = 287,496,396.97
  5. Step 5: Solve for x
    x = 287,496,396.97/21,429.46
  6. Step 6: Final answer
    x = 13,415.94

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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.