Home / 31,351.38-43,265.80-17,205.16

Finding the Fourth Proportional to 31,351.38, 43,265.80 and 17,205.16

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Solution

The fourth proportional to 31,351.38, 43,265.80 and 17,205.16 is: 23,743.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,351.38 : 43,265.80 = 17,205.16 : x
  2. Step 2: Convert to fraction form
    31,351.38/43,265.80 = 17,205.16/x
  3. Step 3: Cross multiply
    31,351.38x = 43,265.80 × 17,205.16
  4. Step 4: Simplify right side
    31,351.38x = 744,395,011.53
  5. Step 5: Solve for x
    x = 744,395,011.53/31,351.38
  6. Step 6: Final answer
    x = 23,743.61

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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.