Home / 31,110.67-42,932.19-16,963.21

Finding the Fourth Proportional to 31,110.67, 42,932.19 and 16,963.21

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Solution

The fourth proportional to 31,110.67, 42,932.19 and 16,963.21 is: 23,408.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,110.67 : 42,932.19 = 16,963.21 : x
  2. Step 2: Convert to fraction form
    31,110.67/42,932.19 = 16,963.21/x
  3. Step 3: Cross multiply
    31,110.67x = 42,932.19 × 16,963.21
  4. Step 4: Simplify right side
    31,110.67x = 728,267,754.73
  5. Step 5: Solve for x
    x = 728,267,754.73/31,110.67
  6. Step 6: Final answer
    x = 23,408.94

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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.