Home / 30,761.30-46,163.55-13,243.70

Finding the Fourth Proportional to 30,761.30, 46,163.55 and 13,243.70

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Solution

The fourth proportional to 30,761.30, 46,163.55 and 13,243.70 is: 19,874.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,761.30 : 46,163.55 = 13,243.70 : x
  2. Step 2: Convert to fraction form
    30,761.30/46,163.55 = 13,243.70/x
  3. Step 3: Cross multiply
    30,761.30x = 46,163.55 × 13,243.70
  4. Step 4: Simplify right side
    30,761.30x = 611,376,207.14
  5. Step 5: Solve for x
    x = 611,376,207.14/30,761.30
  6. Step 6: Final answer
    x = 19,874.85

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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.