Home / 28,517.49-39,352.53-15,769.92

Finding the Fourth Proportional to 28,517.49, 39,352.53 and 15,769.92

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Solution

The fourth proportional to 28,517.49, 39,352.53 and 15,769.92 is: 21,761.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,517.49 : 39,352.53 = 15,769.92 : x
  2. Step 2: Convert to fraction form
    28,517.49/39,352.53 = 15,769.92/x
  3. Step 3: Cross multiply
    28,517.49x = 39,352.53 × 15,769.92
  4. Step 4: Simplify right side
    28,517.49x = 620,586,249.90
  5. Step 5: Solve for x
    x = 620,586,249.90/28,517.49
  6. Step 6: Final answer
    x = 21,761.60

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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.