Home / 31,910.10-44,032.11-18,479.49

Finding the Fourth Proportional to 31,910.10, 44,032.11 and 18,479.49

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Solution

The fourth proportional to 31,910.10, 44,032.11 and 18,479.49 is: 25,499.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,910.10 : 44,032.11 = 18,479.49 : x
  2. Step 2: Convert to fraction form
    31,910.10/44,032.11 = 18,479.49/x
  3. Step 3: Cross multiply
    31,910.10x = 44,032.11 × 18,479.49
  4. Step 4: Simplify right side
    31,910.10x = 813,690,936.42
  5. Step 5: Solve for x
    x = 813,690,936.42/31,910.10
  6. Step 6: Final answer
    x = 25,499.48

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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.