Home / 20,682.11-31,023.54-5,891.42

Finding the Fourth Proportional to 20,682.11, 31,023.54 and 5,891.42

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Solution

The fourth proportional to 20,682.11, 31,023.54 and 5,891.42 is: 8,837.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,682.11 : 31,023.54 = 5,891.42 : x
  2. Step 2: Convert to fraction form
    20,682.11/31,023.54 = 5,891.42/x
  3. Step 3: Cross multiply
    20,682.11x = 31,023.54 × 5,891.42
  4. Step 4: Simplify right side
    20,682.11x = 182,772,548.91
  5. Step 5: Solve for x
    x = 182,772,548.91/20,682.11
  6. Step 6: Final answer
    x = 8,837.23

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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.