Home / 30,201.46-41,679.40-16,772.78

Finding the Fourth Proportional to 30,201.46, 41,679.40 and 16,772.78

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Solution

The fourth proportional to 30,201.46, 41,679.40 and 16,772.78 is: 23,147.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,201.46 : 41,679.40 = 16,772.78 : x
  2. Step 2: Convert to fraction form
    30,201.46/41,679.40 = 16,772.78/x
  3. Step 3: Cross multiply
    30,201.46x = 41,679.40 × 16,772.78
  4. Step 4: Simplify right side
    30,201.46x = 699,079,406.73
  5. Step 5: Solve for x
    x = 699,079,406.73/30,201.46
  6. Step 6: Final answer
    x = 23,147.21

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.