Home / 31,431.72-43,375.19-17,284.60

Finding the Fourth Proportional to 31,431.72, 43,375.19 and 17,284.60

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Solution

The fourth proportional to 31,431.72, 43,375.19 and 17,284.60 is: 23,852.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,431.72 : 43,375.19 = 17,284.60 : x
  2. Step 2: Convert to fraction form
    31,431.72/43,375.19 = 17,284.60/x
  3. Step 3: Cross multiply
    31,431.72x = 43,375.19 × 17,284.60
  4. Step 4: Simplify right side
    31,431.72x = 749,722,809.07
  5. Step 5: Solve for x
    x = 749,722,809.07/31,431.72
  6. Step 6: Final answer
    x = 23,852.43

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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.