Home / 20,514.63-28,310.20-11,083.19

Finding the Fourth Proportional to 20,514.63, 28,310.20 and 11,083.19

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Solution

The fourth proportional to 20,514.63, 28,310.20 and 11,083.19 is: 15,294.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,514.63 : 28,310.20 = 11,083.19 : x
  2. Step 2: Convert to fraction form
    20,514.63/28,310.20 = 11,083.19/x
  3. Step 3: Cross multiply
    20,514.63x = 28,310.20 × 11,083.19
  4. Step 4: Simplify right side
    20,514.63x = 313,767,325.54
  5. Step 5: Solve for x
    x = 313,767,325.54/20,514.63
  6. Step 6: Final answer
    x = 15,294.81

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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.