Home / 20,232.48-30,367.68-12,456.48

Finding the Fourth Proportional to 20,232.48, 30,367.68 and 12,456.48

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Solution

The fourth proportional to 20,232.48, 30,367.68 and 12,456.48 is: 18,696.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,232.48 : 30,367.68 = 12,456.48 : x
  2. Step 2: Convert to fraction form
    20,232.48/30,367.68 = 12,456.48/x
  3. Step 3: Cross multiply
    20,232.48x = 30,367.68 × 12,456.48
  4. Step 4: Simplify right side
    20,232.48x = 378,274,398.57
  5. Step 5: Solve for x
    x = 378,274,398.57/20,232.48
  6. Step 6: Final answer
    x = 18,696.39

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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.