Home / 21,728.82-32,600.46-6,939.84

Finding the Fourth Proportional to 21,728.82, 32,600.46 and 6,939.84

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Solution

The fourth proportional to 21,728.82, 32,600.46 and 6,939.84 is: 10,412.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,728.82 : 32,600.46 = 6,939.84 : x
  2. Step 2: Convert to fraction form
    21,728.82/32,600.46 = 6,939.84/x
  3. Step 3: Cross multiply
    21,728.82x = 32,600.46 × 6,939.84
  4. Step 4: Simplify right side
    21,728.82x = 226,241,976.33
  5. Step 5: Solve for x
    x = 226,241,976.33/21,728.82
  6. Step 6: Final answer
    x = 10,412.07

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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.