Home / 20,704.82-31,058.43-5,912.60

Finding the Fourth Proportional to 20,704.82, 31,058.43 and 5,912.60

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Solution

The fourth proportional to 20,704.82, 31,058.43 and 5,912.60 is: 8,869.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,704.82 : 31,058.43 = 5,912.60 : x
  2. Step 2: Convert to fraction form
    20,704.82/31,058.43 = 5,912.60/x
  3. Step 3: Cross multiply
    20,704.82x = 31,058.43 × 5,912.60
  4. Step 4: Simplify right side
    20,704.82x = 183,636,073.22
  5. Step 5: Solve for x
    x = 183,636,073.22/20,704.82
  6. Step 6: Final answer
    x = 8,869.24

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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.