Home / 38,245.55-52,778.12-21,249.72

Finding the Fourth Proportional to 38,245.55, 52,778.12 and 21,249.72

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Solution

The fourth proportional to 38,245.55, 52,778.12 and 21,249.72 is: 29,324.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,245.55 : 52,778.12 = 21,249.72 : x
  2. Step 2: Convert to fraction form
    38,245.55/52,778.12 = 21,249.72/x
  3. Step 3: Cross multiply
    38,245.55x = 52,778.12 × 21,249.72
  4. Step 4: Simplify right side
    38,245.55x = 1,121,520,165.88
  5. Step 5: Solve for x
    x = 1,121,520,165.88/38,245.55
  6. Step 6: Final answer
    x = 29,324.20

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Half scale
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Double scale
Find fourth proportional to 38,246.55, 52,779.49 and 21,250.72
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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.