Home / 31,316.76-43,217.26-16,976.60

Finding the Fourth Proportional to 31,316.76, 43,217.26 and 16,976.60

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Solution

The fourth proportional to 31,316.76, 43,217.26 and 16,976.60 is: 23,427.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,316.76 : 43,217.26 = 16,976.60 : x
  2. Step 2: Convert to fraction form
    31,316.76/43,217.26 = 16,976.60/x
  3. Step 3: Cross multiply
    31,316.76x = 43,217.26 × 16,976.60
  4. Step 4: Simplify right side
    31,316.76x = 733,682,136.12
  5. Step 5: Solve for x
    x = 733,682,136.12/31,316.76
  6. Step 6: Final answer
    x = 23,427.78

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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.