Home / 14,081.44-21,120.72-3,692.32

Finding the Fourth Proportional to 14,081.44, 21,120.72 and 3,692.32

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Solution

The fourth proportional to 14,081.44, 21,120.72 and 3,692.32 is: 5,538.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,081.44 : 21,120.72 = 3,692.32 : x
  2. Step 2: Convert to fraction form
    14,081.44/21,120.72 = 3,692.32/x
  3. Step 3: Cross multiply
    14,081.44x = 21,120.72 × 3,692.32
  4. Step 4: Simplify right side
    14,081.44x = 77,984,456.87
  5. Step 5: Solve for x
    x = 77,984,456.87/14,081.44
  6. Step 6: Final answer
    x = 5,538.10

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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.