Home / 28,692.12-39,581.82-16,755.96

Finding the Fourth Proportional to 28,692.12, 39,581.82 and 16,755.96

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Solution

The fourth proportional to 28,692.12, 39,581.82 and 16,755.96 is: 23,115.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,692.12 : 39,581.82 = 16,755.96 : x
  2. Step 2: Convert to fraction form
    28,692.12/39,581.82 = 16,755.96/x
  3. Step 3: Cross multiply
    28,692.12x = 39,581.82 × 16,755.96
  4. Step 4: Simplify right side
    28,692.12x = 663,231,392.65
  5. Step 5: Solve for x
    x = 663,231,392.65/28,692.12
  6. Step 6: Final answer
    x = 23,115.45

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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.