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Finding the Fourth Proportional to 31,759.84, 43,834.28 and 18,329.22

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Solution

The fourth proportional to 31,759.84, 43,834.28 and 18,329.22 is: 25,297.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,759.84 : 43,834.28 = 18,329.22 : x
  2. Step 2: Convert to fraction form
    31,759.84/43,834.28 = 18,329.22/x
  3. Step 3: Cross multiply
    31,759.84x = 43,834.28 × 18,329.22
  4. Step 4: Simplify right side
    31,759.84x = 803,448,161.66
  5. Step 5: Solve for x
    x = 803,448,161.66/31,759.84
  6. Step 6: Final answer
    x = 25,297.61

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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.