Home / 28,517.54-39,355.70-17,190.63

Finding the Fourth Proportional to 28,517.54, 39,355.70 and 17,190.63

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Solution

The fourth proportional to 28,517.54, 39,355.70 and 17,190.63 is: 23,723.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,517.54 : 39,355.70 = 17,190.63 : x
  2. Step 2: Convert to fraction form
    28,517.54/39,355.70 = 17,190.63/x
  3. Step 3: Cross multiply
    28,517.54x = 39,355.70 × 17,190.63
  4. Step 4: Simplify right side
    28,517.54x = 676,549,277.09
  5. Step 5: Solve for x
    x = 676,549,277.09/28,517.54
  6. Step 6: Final answer
    x = 23,723.97

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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.