Home / 38,705.80-57,972.30-31,793.80

Finding the Fourth Proportional to 38,705.80, 57,972.30 and 31,793.80

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Solution

The fourth proportional to 38,705.80, 57,972.30 and 31,793.80 is: 47,619.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,705.80 : 57,972.30 = 31,793.80 : x
  2. Step 2: Convert to fraction form
    38,705.80/57,972.30 = 31,793.80/x
  3. Step 3: Cross multiply
    38,705.80x = 57,972.30 × 31,793.80
  4. Step 4: Simplify right side
    38,705.80x = 1,843,159,711.74
  5. Step 5: Solve for x
    x = 1,843,159,711.74/38,705.80
  6. Step 6: Final answer
    x = 47,619.73

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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.