Home / 31,338.11-43,246.35-17,190.86

Finding the Fourth Proportional to 31,338.11, 43,246.35 and 17,190.86

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Solution

The fourth proportional to 31,338.11, 43,246.35 and 17,190.86 is: 23,723.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,338.11 : 43,246.35 = 17,190.86 : x
  2. Step 2: Convert to fraction form
    31,338.11/43,246.35 = 17,190.86/x
  3. Step 3: Cross multiply
    31,338.11x = 43,246.35 × 17,190.86
  4. Step 4: Simplify right side
    31,338.11x = 743,441,732.13
  5. Step 5: Solve for x
    x = 743,441,732.13/31,338.11
  6. Step 6: Final answer
    x = 23,723.25

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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.