Home / 20,514.66-28,310.82-11,561.66

Finding the Fourth Proportional to 20,514.66, 28,310.82 and 11,561.66

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Solution

The fourth proportional to 20,514.66, 28,310.82 and 11,561.66 is: 15,955.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,514.66 : 28,310.82 = 11,561.66 : x
  2. Step 2: Convert to fraction form
    20,514.66/28,310.82 = 11,561.66/x
  3. Step 3: Cross multiply
    20,514.66x = 28,310.82 × 11,561.66
  4. Step 4: Simplify right side
    20,514.66x = 327,320,075.16
  5. Step 5: Solve for x
    x = 327,320,075.16/20,514.66
  6. Step 6: Final answer
    x = 15,955.42

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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.