Home / 28,231.44-38,961-17,057.04

Finding the Fourth Proportional to 28,231.44, 38,961 and 17,057.04

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Solution

The fourth proportional to 28,231.44, 38,961 and 17,057.04 is: 23,539.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,231.44 : 38,961 = 17,057.04 : x
  2. Step 2: Convert to fraction form
    28,231.44/38,961 = 17,057.04/x
  3. Step 3: Cross multiply
    28,231.44x = 38,961 × 17,057.04
  4. Step 4: Simplify right side
    28,231.44x = 664,559,335.44
  5. Step 5: Solve for x
    x = 664,559,335.44/28,231.44
  6. Step 6: Final answer
    x = 23,539.69

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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.