Home / 20,514.74-28,310.34-11,083.30

Finding the Fourth Proportional to 20,514.74, 28,310.34 and 11,083.30

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Solution

The fourth proportional to 20,514.74, 28,310.34 and 11,083.30 is: 15,294.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,514.74 : 28,310.34 = 11,083.30 : x
  2. Step 2: Convert to fraction form
    20,514.74/28,310.34 = 11,083.30/x
  3. Step 3: Cross multiply
    20,514.74x = 28,310.34 × 11,083.30
  4. Step 4: Simplify right side
    20,514.74x = 313,771,962.11
  5. Step 5: Solve for x
    x = 313,771,962.11/20,514.74
  6. Step 6: Final answer
    x = 15,294.96

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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.