Home / 31,157.58-42,997.60-17,010.73

Finding the Fourth Proportional to 31,157.58, 42,997.60 and 17,010.73

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Solution

The fourth proportional to 31,157.58, 42,997.60 and 17,010.73 is: 23,474.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,157.58 : 42,997.60 = 17,010.73 : x
  2. Step 2: Convert to fraction form
    31,157.58/42,997.60 = 17,010.73/x
  3. Step 3: Cross multiply
    31,157.58x = 42,997.60 × 17,010.73
  4. Step 4: Simplify right side
    31,157.58x = 731,420,564.25
  5. Step 5: Solve for x
    x = 731,420,564.25/31,157.58
  6. Step 6: Final answer
    x = 23,474.88

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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.