Home / 28,449.21-42,675.48-8,727.96

Finding the Fourth Proportional to 28,449.21, 42,675.48 and 8,727.96

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Solution

The fourth proportional to 28,449.21, 42,675.48 and 8,727.96 is: 13,092.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,449.21 : 42,675.48 = 8,727.96 : x
  2. Step 2: Convert to fraction form
    28,449.21/42,675.48 = 8,727.96/x
  3. Step 3: Cross multiply
    28,449.21x = 42,675.48 × 8,727.96
  4. Step 4: Simplify right side
    28,449.21x = 372,469,882.42
  5. Step 5: Solve for x
    x = 372,469,882.42/28,449.21
  6. Step 6: Final answer
    x = 13,092.45

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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.