Home / 20,327.23-28,049.60-11,830.48

Finding the Fourth Proportional to 20,327.23, 28,049.60 and 11,830.48

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Solution

The fourth proportional to 20,327.23, 28,049.60 and 11,830.48 is: 16,324.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,327.23 : 28,049.60 = 11,830.48 : x
  2. Step 2: Convert to fraction form
    20,327.23/28,049.60 = 11,830.48/x
  3. Step 3: Cross multiply
    20,327.23x = 28,049.60 × 11,830.48
  4. Step 4: Simplify right side
    20,327.23x = 331,840,118.54
  5. Step 5: Solve for x
    x = 331,840,118.54/20,327.23
  6. Step 6: Final answer
    x = 16,324.91

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.