Home / 28,653.44-39,540.72-15,907.18

Finding the Fourth Proportional to 28,653.44, 39,540.72 and 15,907.18

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Solution

The fourth proportional to 28,653.44, 39,540.72 and 15,907.18 is: 21,951.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,653.44 : 39,540.72 = 15,907.18 : x
  2. Step 2: Convert to fraction form
    28,653.44/39,540.72 = 15,907.18/x
  3. Step 3: Cross multiply
    28,653.44x = 39,540.72 × 15,907.18
  4. Step 4: Simplify right side
    28,653.44x = 628,981,152.67
  5. Step 5: Solve for x
    x = 628,981,152.67/28,653.44
  6. Step 6: Final answer
    x = 21,951.33

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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.