Home / 20,760.30-31,134.68-5,763.97

Finding the Fourth Proportional to 20,760.30, 31,134.68 and 5,763.97

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Solution

The fourth proportional to 20,760.30, 31,134.68 and 5,763.97 is: 8,644.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,760.30 : 31,134.68 = 5,763.97 : x
  2. Step 2: Convert to fraction form
    20,760.30/31,134.68 = 5,763.97/x
  3. Step 3: Cross multiply
    20,760.30x = 31,134.68 × 5,763.97
  4. Step 4: Simplify right side
    20,760.30x = 179,459,361.48
  5. Step 5: Solve for x
    x = 179,459,361.48/20,760.30
  6. Step 6: Final answer
    x = 8,644.35

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1.5x scale

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.