Home / 20,883.41-31,331.60-6,843.55

Finding the Fourth Proportional to 20,883.41, 31,331.60 and 6,843.55

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Solution

The fourth proportional to 20,883.41, 31,331.60 and 6,843.55 is: 10,267.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,883.41 : 31,331.60 = 6,843.55 : x
  2. Step 2: Convert to fraction form
    20,883.41/31,331.60 = 6,843.55/x
  3. Step 3: Cross multiply
    20,883.41x = 31,331.60 × 6,843.55
  4. Step 4: Simplify right side
    20,883.41x = 214,419,371.18
  5. Step 5: Solve for x
    x = 214,419,371.18/20,883.41
  6. Step 6: Final answer
    x = 10,267.45

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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.