Home / 20,682.14-31,011.44-14,116.28

Finding the Fourth Proportional to 20,682.14, 31,011.44 and 14,116.28

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Solution

The fourth proportional to 20,682.14, 31,011.44 and 14,116.28 is: 21,166.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,682.14 : 31,011.44 = 14,116.28 : x
  2. Step 2: Convert to fraction form
    20,682.14/31,011.44 = 14,116.28/x
  3. Step 3: Cross multiply
    20,682.14x = 31,011.44 × 14,116.28
  4. Step 4: Simplify right side
    20,682.14x = 437,766,170.24
  5. Step 5: Solve for x
    x = 437,766,170.24/20,682.14
  6. Step 6: Final answer
    x = 21,166.39

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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.