Home / 57,722.38-86,592.21-20,286.88

Finding the Fourth Proportional to 57,722.38, 86,592.21 and 20,286.88

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Solution

The fourth proportional to 57,722.38, 86,592.21 and 20,286.88 is: 30,433.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,722.38 : 86,592.21 = 20,286.88 : x
  2. Step 2: Convert to fraction form
    57,722.38/86,592.21 = 20,286.88/x
  3. Step 3: Cross multiply
    57,722.38x = 86,592.21 × 20,286.88
  4. Step 4: Simplify right side
    57,722.38x = 1,756,685,773.20
  5. Step 5: Solve for x
    x = 1,756,685,773.20/57,722.38
  6. Step 6: Final answer
    x = 30,433.36

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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.