Home / 38,234.35-52,764.12-21,240.19

Finding the Fourth Proportional to 38,234.35, 52,764.12 and 21,240.19

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Solution

The fourth proportional to 38,234.35, 52,764.12 and 21,240.19 is: 29,311.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,234.35 : 52,764.12 = 21,240.19 : x
  2. Step 2: Convert to fraction form
    38,234.35/52,764.12 = 21,240.19/x
  3. Step 3: Cross multiply
    38,234.35x = 52,764.12 × 21,240.19
  4. Step 4: Simplify right side
    38,234.35x = 1,120,719,933.98
  5. Step 5: Solve for x
    x = 1,120,719,933.98/38,234.35
  6. Step 6: Final answer
    x = 29,311.86

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Double scale
Find fourth proportional to 38,235.35, 52,765.50 and 21,241.19
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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.