Home / 31,028.11-42,818.97-16,880.92

Finding the Fourth Proportional to 31,028.11, 42,818.97 and 16,880.92

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Solution

The fourth proportional to 31,028.11, 42,818.97 and 16,880.92 is: 23,295.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,028.11 : 42,818.97 = 16,880.92 : x
  2. Step 2: Convert to fraction form
    31,028.11/42,818.97 = 16,880.92/x
  3. Step 3: Cross multiply
    31,028.11x = 42,818.97 × 16,880.92
  4. Step 4: Simplify right side
    31,028.11x = 722,823,607.05
  5. Step 5: Solve for x
    x = 722,823,607.05/31,028.11
  6. Step 6: Final answer
    x = 23,295.77

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Double scale
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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.