Home / 20,215.37-30,336.93-7,067.75

Finding the Fourth Proportional to 20,215.37, 30,336.93 and 7,067.75

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Solution

The fourth proportional to 20,215.37, 30,336.93 and 7,067.75 is: 10,606.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,215.37 : 30,336.93 = 7,067.75 : x
  2. Step 2: Convert to fraction form
    20,215.37/30,336.93 = 7,067.75/x
  3. Step 3: Cross multiply
    20,215.37x = 30,336.93 × 7,067.75
  4. Step 4: Simplify right side
    20,215.37x = 214,413,837.01
  5. Step 5: Solve for x
    x = 214,413,837.01/20,215.37
  6. Step 6: Final answer
    x = 10,606.48

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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.