Home / 28,517.43-39,350.59-15,769.74

Finding the Fourth Proportional to 28,517.43, 39,350.59 and 15,769.74

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Solution

The fourth proportional to 28,517.43, 39,350.59 and 15,769.74 is: 21,760.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,517.43 : 39,350.59 = 15,769.74 : x
  2. Step 2: Convert to fraction form
    28,517.43/39,350.59 = 15,769.74/x
  3. Step 3: Cross multiply
    28,517.43x = 39,350.59 × 15,769.74
  4. Step 4: Simplify right side
    28,517.43x = 620,548,573.15
  5. Step 5: Solve for x
    x = 620,548,573.15/28,517.43
  6. Step 6: Final answer
    x = 21,760.33

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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.