Home / 28,751.20-39,676.60-16,175.96

Finding the Fourth Proportional to 28,751.20, 39,676.60 and 16,175.96

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Solution

The fourth proportional to 28,751.20, 39,676.60 and 16,175.96 is: 22,322.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,751.20 : 39,676.60 = 16,175.96 : x
  2. Step 2: Convert to fraction form
    28,751.20/39,676.60 = 16,175.96/x
  3. Step 3: Cross multiply
    28,751.20x = 39,676.60 × 16,175.96
  4. Step 4: Simplify right side
    28,751.20x = 641,807,094.54
  5. Step 5: Solve for x
    x = 641,807,094.54/28,751.20
  6. Step 6: Final answer
    x = 22,322.79

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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.