Home / 31,338.12-43,247.28-17,190.96

Finding the Fourth Proportional to 31,338.12, 43,247.28 and 17,190.96

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Solution

The fourth proportional to 31,338.12, 43,247.28 and 17,190.96 is: 23,723.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,338.12 : 43,247.28 = 17,190.96 : x
  2. Step 2: Convert to fraction form
    31,338.12/43,247.28 = 17,190.96/x
  3. Step 3: Cross multiply
    31,338.12x = 43,247.28 × 17,190.96
  4. Step 4: Simplify right side
    31,338.12x = 743,462,260.59
  5. Step 5: Solve for x
    x = 743,462,260.59/31,338.12
  6. Step 6: Final answer
    x = 23,723.89

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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.