Home / 38,422.05-57,633.07-20,661.08

Finding the Fourth Proportional to 38,422.05, 57,633.07 and 20,661.08

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Solution

The fourth proportional to 38,422.05, 57,633.07 and 20,661.08 is: 30,991.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,422.05 : 57,633.07 = 20,661.08 : x
  2. Step 2: Convert to fraction form
    38,422.05/57,633.07 = 20,661.08/x
  3. Step 3: Cross multiply
    38,422.05x = 57,633.07 × 20,661.08
  4. Step 4: Simplify right side
    38,422.05x = 1,190,761,168.84
  5. Step 5: Solve for x
    x = 1,190,761,168.84/38,422.05
  6. Step 6: Final answer
    x = 30,991.61

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Double scale
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Similar ratio
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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.