Home / 20,330.22-30,505.77-15,398.22

Finding the Fourth Proportional to 20,330.22, 30,505.77 and 15,398.22

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Solution

The fourth proportional to 20,330.22, 30,505.77 and 15,398.22 is: 23,105.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,330.22 : 30,505.77 = 15,398.22 : x
  2. Step 2: Convert to fraction form
    20,330.22/30,505.77 = 15,398.22/x
  3. Step 3: Cross multiply
    20,330.22x = 30,505.77 × 15,398.22
  4. Step 4: Simplify right side
    20,330.22x = 469,734,557.73
  5. Step 5: Solve for x
    x = 469,734,557.73/20,330.22
  6. Step 6: Final answer
    x = 23,105.24

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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.