Home / 28,539.25-39,382.90-15,793.14

Finding the Fourth Proportional to 28,539.25, 39,382.90 and 15,793.14

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Solution

The fourth proportional to 28,539.25, 39,382.90 and 15,793.14 is: 21,793.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,539.25 : 39,382.90 = 15,793.14 : x
  2. Step 2: Convert to fraction form
    28,539.25/39,382.90 = 15,793.14/x
  3. Step 3: Cross multiply
    28,539.25x = 39,382.90 × 15,793.14
  4. Step 4: Simplify right side
    28,539.25x = 621,979,653.31
  5. Step 5: Solve for x
    x = 621,979,653.31/28,539.25
  6. Step 6: Final answer
    x = 21,793.83

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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.