Home / 20,447.22-30,671.14-13,471.91

Finding the Fourth Proportional to 20,447.22, 30,671.14 and 13,471.91

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Solution

The fourth proportional to 20,447.22, 30,671.14 and 13,471.91 is: 20,208.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,447.22 : 30,671.14 = 13,471.91 : x
  2. Step 2: Convert to fraction form
    20,447.22/30,671.14 = 13,471.91/x
  3. Step 3: Cross multiply
    20,447.22x = 30,671.14 × 13,471.91
  4. Step 4: Simplify right side
    20,447.22x = 413,198,837.68
  5. Step 5: Solve for x
    x = 413,198,837.68/20,447.22
  6. Step 6: Final answer
    x = 20,208.07

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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.