Home / 31,711.96-47,567.94-13,231

Finding the Fourth Proportional to 31,711.96, 47,567.94 and 13,231

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Solution

The fourth proportional to 31,711.96, 47,567.94 and 13,231 is: 19,846.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,711.96 : 47,567.94 = 13,231 : x
  2. Step 2: Convert to fraction form
    31,711.96/47,567.94 = 13,231/x
  3. Step 3: Cross multiply
    31,711.96x = 47,567.94 × 13,231
  4. Step 4: Simplify right side
    31,711.96x = 629,371,414.14
  5. Step 5: Solve for x
    x = 629,371,414.14/31,711.96
  6. Step 6: Final answer
    x = 19,846.50

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.