Home / 20,448.74-28,217.31-11,952.85

Finding the Fourth Proportional to 20,448.74, 28,217.31 and 11,952.85

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Solution

The fourth proportional to 20,448.74, 28,217.31 and 11,952.85 is: 16,493.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,448.74 : 28,217.31 = 11,952.85 : x
  2. Step 2: Convert to fraction form
    20,448.74/28,217.31 = 11,952.85/x
  3. Step 3: Cross multiply
    20,448.74x = 28,217.31 × 11,952.85
  4. Step 4: Simplify right side
    20,448.74x = 337,277,273.83
  5. Step 5: Solve for x
    x = 337,277,273.83/20,448.74
  6. Step 6: Final answer
    x = 16,493.79

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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.