Home / 20,261.62-30,393.38-6,221.08

Finding the Fourth Proportional to 20,261.62, 30,393.38 and 6,221.08

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Solution

The fourth proportional to 20,261.62, 30,393.38 and 6,221.08 is: 9,331.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,261.62 : 30,393.38 = 6,221.08 : x
  2. Step 2: Convert to fraction form
    20,261.62/30,393.38 = 6,221.08/x
  3. Step 3: Cross multiply
    20,261.62x = 30,393.38 × 6,221.08
  4. Step 4: Simplify right side
    20,261.62x = 189,079,648.45
  5. Step 5: Solve for x
    x = 189,079,648.45/20,261.62
  6. Step 6: Final answer
    x = 9,331.91

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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.