Home / 31,331.81-43,238.81-17,185.57

Finding the Fourth Proportional to 31,331.81, 43,238.81 and 17,185.57

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Solution

The fourth proportional to 31,331.81, 43,238.81 and 17,185.57 is: 23,716.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,331.81 : 43,238.81 = 17,185.57 : x
  2. Step 2: Convert to fraction form
    31,331.81/43,238.81 = 17,185.57/x
  3. Step 3: Cross multiply
    31,331.81x = 43,238.81 × 17,185.57
  4. Step 4: Simplify right side
    31,331.81x = 743,083,530.84
  5. Step 5: Solve for x
    x = 743,083,530.84/31,331.81
  6. Step 6: Final answer
    x = 23,716.58

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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.