Home / 31,267.72-43,149.60-17,121.88

Finding the Fourth Proportional to 31,267.72, 43,149.60 and 17,121.88

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Solution

The fourth proportional to 31,267.72, 43,149.60 and 17,121.88 is: 23,628.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,267.72 : 43,149.60 = 17,121.88 : x
  2. Step 2: Convert to fraction form
    31,267.72/43,149.60 = 17,121.88/x
  3. Step 3: Cross multiply
    31,267.72x = 43,149.60 × 17,121.88
  4. Step 4: Simplify right side
    31,267.72x = 738,802,273.25
  5. Step 5: Solve for x
    x = 738,802,273.25/31,267.72
  6. Step 6: Final answer
    x = 23,628.27

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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.