Home / 14,187.16-21,282.18-5,429.44

Finding the Fourth Proportional to 14,187.16, 21,282.18 and 5,429.44

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Solution

The fourth proportional to 14,187.16, 21,282.18 and 5,429.44 is: 8,144.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,187.16 : 21,282.18 = 5,429.44 : x
  2. Step 2: Convert to fraction form
    14,187.16/21,282.18 = 5,429.44/x
  3. Step 3: Cross multiply
    14,187.16x = 21,282.18 × 5,429.44
  4. Step 4: Simplify right side
    14,187.16x = 115,550,319.38
  5. Step 5: Solve for x
    x = 115,550,319.38/14,187.16
  6. Step 6: Final answer
    x = 8,144.71

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.