Home / 28,202.15-38,908.66-16,871.97

Finding the Fourth Proportional to 28,202.15, 38,908.66 and 16,871.97

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Solution

The fourth proportional to 28,202.15, 38,908.66 and 16,871.97 is: 23,277.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,202.15 : 38,908.66 = 16,871.97 : x
  2. Step 2: Convert to fraction form
    28,202.15/38,908.66 = 16,871.97/x
  3. Step 3: Cross multiply
    28,202.15x = 38,908.66 × 16,871.97
  4. Step 4: Simplify right side
    28,202.15x = 656,465,549.72
  5. Step 5: Solve for x
    x = 656,465,549.72/28,202.15
  6. Step 6: Final answer
    x = 23,277.15

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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.