Home / 20,186.31-30,279.48-9,653.85

Finding the Fourth Proportional to 20,186.31, 30,279.48 and 9,653.85

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Solution

The fourth proportional to 20,186.31, 30,279.48 and 9,653.85 is: 14,480.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,186.31 : 30,279.48 = 9,653.85 : x
  2. Step 2: Convert to fraction form
    20,186.31/30,279.48 = 9,653.85/x
  3. Step 3: Cross multiply
    20,186.31x = 30,279.48 × 9,653.85
  4. Step 4: Simplify right side
    20,186.31x = 292,313,558.00
  5. Step 5: Solve for x
    x = 292,313,558.00/20,186.31
  6. Step 6: Final answer
    x = 14,480.78

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.