Home / 20,759.24-28,647.69-11,327.79

Finding the Fourth Proportional to 20,759.24, 28,647.69 and 11,327.79

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Solution

The fourth proportional to 20,759.24, 28,647.69 and 11,327.79 is: 15,632.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,759.24 : 28,647.69 = 11,327.79 : x
  2. Step 2: Convert to fraction form
    20,759.24/28,647.69 = 11,327.79/x
  3. Step 3: Cross multiply
    20,759.24x = 28,647.69 × 11,327.79
  4. Step 4: Simplify right side
    20,759.24x = 324,515,016.31
  5. Step 5: Solve for x
    x = 324,515,016.31/20,759.24
  6. Step 6: Final answer
    x = 15,632.32

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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.