Home / 31,029.89-42,821.12-16,882.97

Finding the Fourth Proportional to 31,029.89, 42,821.12 and 16,882.97

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Solution

The fourth proportional to 31,029.89, 42,821.12 and 16,882.97 is: 23,298.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,029.89 : 42,821.12 = 16,882.97 : x
  2. Step 2: Convert to fraction form
    31,029.89/42,821.12 = 16,882.97/x
  3. Step 3: Cross multiply
    31,029.89x = 42,821.12 × 16,882.97
  4. Step 4: Simplify right side
    31,029.89x = 722,947,512.43
  5. Step 5: Solve for x
    x = 722,947,512.43/31,029.89
  6. Step 6: Final answer
    x = 23,298.43

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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.