Home / 20,704.56-31,053.84-6,662.76

Finding the Fourth Proportional to 20,704.56, 31,053.84 and 6,662.76

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Solution

The fourth proportional to 20,704.56, 31,053.84 and 6,662.76 is: 9,993.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,704.56 : 31,053.84 = 6,662.76 : x
  2. Step 2: Convert to fraction form
    20,704.56/31,053.84 = 6,662.76/x
  3. Step 3: Cross multiply
    20,704.56x = 31,053.84 × 6,662.76
  4. Step 4: Simplify right side
    20,704.56x = 206,904,283.00
  5. Step 5: Solve for x
    x = 206,904,283.00/20,704.56
  6. Step 6: Final answer
    x = 9,993.17

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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.