Home / 31,431.11-43,373.12-17,283.96

Finding the Fourth Proportional to 31,431.11, 43,373.12 and 17,283.96

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Solution

The fourth proportional to 31,431.11, 43,373.12 and 17,283.96 is: 23,850.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,431.11 : 43,373.12 = 17,283.96 : x
  2. Step 2: Convert to fraction form
    31,431.11/43,373.12 = 17,283.96/x
  3. Step 3: Cross multiply
    31,431.11x = 43,373.12 × 17,283.96
  4. Step 4: Simplify right side
    31,431.11x = 749,659,184.74
  5. Step 5: Solve for x
    x = 749,659,184.74/31,431.11
  6. Step 6: Final answer
    x = 23,850.87

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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.