Home / 28,540.44-39,385.47-15,792.66

Finding the Fourth Proportional to 28,540.44, 39,385.47 and 15,792.66

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Solution

The fourth proportional to 28,540.44, 39,385.47 and 15,792.66 is: 21,793.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,540.44 : 39,385.47 = 15,792.66 : x
  2. Step 2: Convert to fraction form
    28,540.44/39,385.47 = 15,792.66/x
  3. Step 3: Cross multiply
    28,540.44x = 39,385.47 × 15,792.66
  4. Step 4: Simplify right side
    28,540.44x = 622,001,336.65
  5. Step 5: Solve for x
    x = 622,001,336.65/28,540.44
  6. Step 6: Final answer
    x = 21,793.68

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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.