Home / 28,383.78-39,169.62-16,454.04

Finding the Fourth Proportional to 28,383.78, 39,169.62 and 16,454.04

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Solution

The fourth proportional to 28,383.78, 39,169.62 and 16,454.04 is: 22,706.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,383.78 : 39,169.62 = 16,454.04 : x
  2. Step 2: Convert to fraction form
    28,383.78/39,169.62 = 16,454.04/x
  3. Step 3: Cross multiply
    28,383.78x = 39,169.62 × 16,454.04
  4. Step 4: Simplify right side
    28,383.78x = 644,498,494.26
  5. Step 5: Solve for x
    x = 644,498,494.26/28,383.78
  6. Step 6: Final answer
    x = 22,706.58

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.