Home / 20,231.36-27,932.25-13,064.48

Finding the Fourth Proportional to 20,231.36, 27,932.25 and 13,064.48

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Solution

The fourth proportional to 20,231.36, 27,932.25 and 13,064.48 is: 18,037.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,231.36 : 27,932.25 = 13,064.48 : x
  2. Step 2: Convert to fraction form
    20,231.36/27,932.25 = 13,064.48/x
  3. Step 3: Cross multiply
    20,231.36x = 27,932.25 × 13,064.48
  4. Step 4: Simplify right side
    20,231.36x = 364,920,321.48
  5. Step 5: Solve for x
    x = 364,920,321.48/20,231.36
  6. Step 6: Final answer
    x = 18,037.36

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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.