Home / 28,871.40-39,839.82-16,932.54

Finding the Fourth Proportional to 28,871.40, 39,839.82 and 16,932.54

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Solution

The fourth proportional to 28,871.40, 39,839.82 and 16,932.54 is: 23,365.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,871.40 : 39,839.82 = 16,932.54 : x
  2. Step 2: Convert to fraction form
    28,871.40/39,839.82 = 16,932.54/x
  3. Step 3: Cross multiply
    28,871.40x = 39,839.82 × 16,932.54
  4. Step 4: Simplify right side
    28,871.40x = 674,589,345.74
  5. Step 5: Solve for x
    x = 674,589,345.74/28,871.40
  6. Step 6: Final answer
    x = 23,365.31

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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.