Home / 38,489.76-57,788.33-19,785.65

Finding the Fourth Proportional to 38,489.76, 57,788.33 and 19,785.65

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Solution

The fourth proportional to 38,489.76, 57,788.33 and 19,785.65 is: 29,706.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,489.76 : 57,788.33 = 19,785.65 : x
  2. Step 2: Convert to fraction form
    38,489.76/57,788.33 = 19,785.65/x
  3. Step 3: Cross multiply
    38,489.76x = 57,788.33 × 19,785.65
  4. Step 4: Simplify right side
    38,489.76x = 1,143,379,283.59
  5. Step 5: Solve for x
    x = 1,143,379,283.59/38,489.76
  6. Step 6: Final answer
    x = 29,706.06

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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.