Home / 21,380.22-32,035.26-15,109.61

Finding the Fourth Proportional to 21,380.22, 32,035.26 and 15,109.61

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Solution

The fourth proportional to 21,380.22, 32,035.26 and 15,109.61 is: 22,639.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,380.22 : 32,035.26 = 15,109.61 : x
  2. Step 2: Convert to fraction form
    21,380.22/32,035.26 = 15,109.61/x
  3. Step 3: Cross multiply
    21,380.22x = 32,035.26 × 15,109.61
  4. Step 4: Simplify right side
    21,380.22x = 484,040,181.33
  5. Step 5: Solve for x
    x = 484,040,181.33/21,380.22
  6. Step 6: Final answer
    x = 22,639.63

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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.