Home / 20,231.12-30,297.44-13,974.48

Finding the Fourth Proportional to 20,231.12, 30,297.44 and 13,974.48

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Solution

The fourth proportional to 20,231.12, 30,297.44 and 13,974.48 is: 20,927.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,231.12 : 30,297.44 = 13,974.48 : x
  2. Step 2: Convert to fraction form
    20,231.12/30,297.44 = 13,974.48/x
  3. Step 3: Cross multiply
    20,231.12x = 30,297.44 × 13,974.48
  4. Step 4: Simplify right side
    20,231.12x = 423,390,969.33
  5. Step 5: Solve for x
    x = 423,390,969.33/20,231.12
  6. Step 6: Final answer
    x = 20,927.71

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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.