Home / 28,233.18-38,961.99-15,658.02

Finding the Fourth Proportional to 28,233.18, 38,961.99 and 15,658.02

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Solution

The fourth proportional to 28,233.18, 38,961.99 and 15,658.02 is: 21,608.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,233.18 : 38,961.99 = 15,658.02 : x
  2. Step 2: Convert to fraction form
    28,233.18/38,961.99 = 15,658.02/x
  3. Step 3: Cross multiply
    28,233.18x = 38,961.99 × 15,658.02
  4. Step 4: Simplify right side
    28,233.18x = 610,067,618.66
  5. Step 5: Solve for x
    x = 610,067,618.66/28,233.18
  6. Step 6: Final answer
    x = 21,608.18

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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.