Home / 20,684.16-31,028.06-5,892.75

Finding the Fourth Proportional to 20,684.16, 31,028.06 and 5,892.75

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Solution

The fourth proportional to 20,684.16, 31,028.06 and 5,892.75 is: 8,839.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,684.16 : 31,028.06 = 5,892.75 : x
  2. Step 2: Convert to fraction form
    20,684.16/31,028.06 = 5,892.75/x
  3. Step 3: Cross multiply
    20,684.16x = 31,028.06 × 5,892.75
  4. Step 4: Simplify right side
    20,684.16x = 182,840,615.30
  5. Step 5: Solve for x
    x = 182,840,615.30/20,684.16
  6. Step 6: Final answer
    x = 8,839.64

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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.