Home / 20,231.66-30,347.44-5,440.58

Finding the Fourth Proportional to 20,231.66, 30,347.44 and 5,440.58

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Solution

The fourth proportional to 20,231.66, 30,347.44 and 5,440.58 is: 8,160.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,231.66 : 30,347.44 = 5,440.58 : x
  2. Step 2: Convert to fraction form
    20,231.66/30,347.44 = 5,440.58/x
  3. Step 3: Cross multiply
    20,231.66x = 30,347.44 × 5,440.58
  4. Step 4: Simplify right side
    20,231.66x = 165,107,737.38
  5. Step 5: Solve for x
    x = 165,107,737.38/20,231.66
  6. Step 6: Final answer
    x = 8,160.86

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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.