Home / 20,976.53-31,464.80-17,270.97

Finding the Fourth Proportional to 20,976.53, 31,464.80 and 17,270.97

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Solution

The fourth proportional to 20,976.53, 31,464.80 and 17,270.97 is: 25,906.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,976.53 : 31,464.80 = 17,270.97 : x
  2. Step 2: Convert to fraction form
    20,976.53/31,464.80 = 17,270.97/x
  3. Step 3: Cross multiply
    20,976.53x = 31,464.80 × 17,270.97
  4. Step 4: Simplify right side
    20,976.53x = 543,427,530.50
  5. Step 5: Solve for x
    x = 543,427,530.50/20,976.53
  6. Step 6: Final answer
    x = 25,906.46

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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.