Home / 21,765.92-32,654.56-11,239.12

Finding the Fourth Proportional to 21,765.92, 32,654.56 and 11,239.12

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Solution

The fourth proportional to 21,765.92, 32,654.56 and 11,239.12 is: 16,861.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,765.92 : 32,654.56 = 11,239.12 : x
  2. Step 2: Convert to fraction form
    21,765.92/32,654.56 = 11,239.12/x
  3. Step 3: Cross multiply
    21,765.92x = 32,654.56 × 11,239.12
  4. Step 4: Simplify right side
    21,765.92x = 367,008,518.39
  5. Step 5: Solve for x
    x = 367,008,518.39/21,765.92
  6. Step 6: Final answer
    x = 16,861.61

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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.