Home / 28,092.96-38,768.22-15,517.68

Finding the Fourth Proportional to 28,092.96, 38,768.22 and 15,517.68

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Solution

The fourth proportional to 28,092.96, 38,768.22 and 15,517.68 is: 21,414.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,092.96 : 38,768.22 = 15,517.68 : x
  2. Step 2: Convert to fraction form
    28,092.96/38,768.22 = 15,517.68/x
  3. Step 3: Cross multiply
    28,092.96x = 38,768.22 × 15,517.68
  4. Step 4: Simplify right side
    28,092.96x = 601,592,832.13
  5. Step 5: Solve for x
    x = 601,592,832.13/28,092.96
  6. Step 6: Final answer
    x = 21,414.36

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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.