Home / 31,368.82-43,288.43-17,221.57

Finding the Fourth Proportional to 31,368.82, 43,288.43 and 17,221.57

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Solution

The fourth proportional to 31,368.82, 43,288.43 and 17,221.57 is: 23,765.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,368.82 : 43,288.43 = 17,221.57 : x
  2. Step 2: Convert to fraction form
    31,368.82/43,288.43 = 17,221.57/x
  3. Step 3: Cross multiply
    31,368.82x = 43,288.43 × 17,221.57
  4. Step 4: Simplify right side
    31,368.82x = 745,494,727.44
  5. Step 5: Solve for x
    x = 745,494,727.44/31,368.82
  6. Step 6: Final answer
    x = 23,765.47

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.