Home / 31,755.40-47,706.54-19,945.96

Finding the Fourth Proportional to 31,755.40, 47,706.54 and 19,945.96

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Solution

The fourth proportional to 31,755.40, 47,706.54 and 19,945.96 is: 29,965.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,755.40 : 47,706.54 = 19,945.96 : x
  2. Step 2: Convert to fraction form
    31,755.40/47,706.54 = 19,945.96/x
  3. Step 3: Cross multiply
    31,755.40x = 47,706.54 × 19,945.96
  4. Step 4: Simplify right side
    31,755.40x = 951,552,738.58
  5. Step 5: Solve for x
    x = 951,552,738.58/31,755.40
  6. Step 6: Final answer
    x = 29,965.07

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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.