Home / 28,326.25-39,091.18-15,579.97

Finding the Fourth Proportional to 28,326.25, 39,091.18 and 15,579.97

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Solution

The fourth proportional to 28,326.25, 39,091.18 and 15,579.97 is: 21,500.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,326.25 : 39,091.18 = 15,579.97 : x
  2. Step 2: Convert to fraction form
    28,326.25/39,091.18 = 15,579.97/x
  3. Step 3: Cross multiply
    28,326.25x = 39,091.18 × 15,579.97
  4. Step 4: Simplify right side
    28,326.25x = 609,039,411.66
  5. Step 5: Solve for x
    x = 609,039,411.66/28,326.25
  6. Step 6: Final answer
    x = 21,500.88

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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.