Home / 38,283.82-57,425.73-11,990.62

Finding the Fourth Proportional to 38,283.82, 57,425.73 and 11,990.62

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Solution

The fourth proportional to 38,283.82, 57,425.73 and 11,990.62 is: 17,985.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,283.82 : 57,425.73 = 11,990.62 : x
  2. Step 2: Convert to fraction form
    38,283.82/57,425.73 = 11,990.62/x
  3. Step 3: Cross multiply
    38,283.82x = 57,425.73 × 11,990.62
  4. Step 4: Simplify right side
    38,283.82x = 688,569,759.57
  5. Step 5: Solve for x
    x = 688,569,759.57/38,283.82
  6. Step 6: Final answer
    x = 17,985.92

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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.