Home / 38,605.74-57,930.66-20,836.32

Finding the Fourth Proportional to 38,605.74, 57,930.66 and 20,836.32

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Solution

The fourth proportional to 38,605.74, 57,930.66 and 20,836.32 is: 31,266.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,605.74 : 57,930.66 = 20,836.32 : x
  2. Step 2: Convert to fraction form
    38,605.74/57,930.66 = 20,836.32/x
  3. Step 3: Cross multiply
    38,605.74x = 57,930.66 × 20,836.32
  4. Step 4: Simplify right side
    38,605.74x = 1,207,061,769.57
  5. Step 5: Solve for x
    x = 1,207,061,769.57/38,605.74
  6. Step 6: Final answer
    x = 31,266.38

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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.