Home / 20,946.82-28,906.05-11,514.10

Finding the Fourth Proportional to 20,946.82, 28,906.05 and 11,514.10

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Solution

The fourth proportional to 20,946.82, 28,906.05 and 11,514.10 is: 15,889.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,946.82 : 28,906.05 = 11,514.10 : x
  2. Step 2: Convert to fraction form
    20,946.82/28,906.05 = 11,514.10/x
  3. Step 3: Cross multiply
    20,946.82x = 28,906.05 × 11,514.10
  4. Step 4: Simplify right side
    20,946.82x = 332,827,150.31
  5. Step 5: Solve for x
    x = 332,827,150.31/20,946.82
  6. Step 6: Final answer
    x = 15,889.15

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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.