Home / 20,744.60-31,116.84-5,162.22

Finding the Fourth Proportional to 20,744.60, 31,116.84 and 5,162.22

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Solution

The fourth proportional to 20,744.60, 31,116.84 and 5,162.22 is: 7,743.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,744.60 : 31,116.84 = 5,162.22 : x
  2. Step 2: Convert to fraction form
    20,744.60/31,116.84 = 5,162.22/x
  3. Step 3: Cross multiply
    20,744.60x = 31,116.84 × 5,162.22
  4. Step 4: Simplify right side
    20,744.60x = 160,631,973.78
  5. Step 5: Solve for x
    x = 160,631,973.78/20,744.60
  6. Step 6: Final answer
    x = 7,743.32

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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.