Home / 38,112.70-57,175.11-11,812.00

Finding the Fourth Proportional to 38,112.70, 57,175.11 and 11,812.00

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Solution

The fourth proportional to 38,112.70, 57,175.11 and 11,812.00 is: 17,719.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,112.70 : 57,175.11 = 11,812.00 : x
  2. Step 2: Convert to fraction form
    38,112.70/57,175.11 = 11,812.00/x
  3. Step 3: Cross multiply
    38,112.70x = 57,175.11 × 11,812.00
  4. Step 4: Simplify right side
    38,112.70x = 675,352,586.55
  5. Step 5: Solve for x
    x = 675,352,586.55/38,112.70
  6. Step 6: Final answer
    x = 17,719.88

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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.