Home / 31,621.25-43,644.60-18,200.26

Finding the Fourth Proportional to 31,621.25, 43,644.60 and 18,200.26

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Solution

The fourth proportional to 31,621.25, 43,644.60 and 18,200.26 is: 25,120.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,621.25 : 43,644.60 = 18,200.26 : x
  2. Step 2: Convert to fraction form
    31,621.25/43,644.60 = 18,200.26/x
  3. Step 3: Cross multiply
    31,621.25x = 43,644.60 × 18,200.26
  4. Step 4: Simplify right side
    31,621.25x = 794,343,067.60
  5. Step 5: Solve for x
    x = 794,343,067.60/31,621.25
  6. Step 6: Final answer
    x = 25,120.55

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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.