Home / 20,863.48-28,794.36-11,908.96

Finding the Fourth Proportional to 20,863.48, 28,794.36 and 11,908.96

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Solution

The fourth proportional to 20,863.48, 28,794.36 and 11,908.96 is: 16,435.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,863.48 : 28,794.36 = 11,908.96 : x
  2. Step 2: Convert to fraction form
    20,863.48/28,794.36 = 11,908.96/x
  3. Step 3: Cross multiply
    20,863.48x = 28,794.36 × 11,908.96
  4. Step 4: Simplify right side
    20,863.48x = 342,910,881.47
  5. Step 5: Solve for x
    x = 342,910,881.47/20,863.48
  6. Step 6: Final answer
    x = 16,435.94

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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.