Home / 28,770.75-39,705.30-16,196.31

Finding the Fourth Proportional to 28,770.75, 39,705.30 and 16,196.31

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Solution

The fourth proportional to 28,770.75, 39,705.30 and 16,196.31 is: 22,351.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,770.75 : 39,705.30 = 16,196.31 : x
  2. Step 2: Convert to fraction form
    28,770.75/39,705.30 = 16,196.31/x
  3. Step 3: Cross multiply
    28,770.75x = 39,705.30 × 16,196.31
  4. Step 4: Simplify right side
    28,770.75x = 643,079,347.44
  5. Step 5: Solve for x
    x = 643,079,347.44/28,770.75
  6. Step 6: Final answer
    x = 22,351.85

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