Home / 38,111.80-57,143.70-15,940.60

Finding the Fourth Proportional to 38,111.80, 57,143.70 and 15,940.60

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Solution

The fourth proportional to 38,111.80, 57,143.70 and 15,940.60 is: 23,900.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,111.80 : 57,143.70 = 15,940.60 : x
  2. Step 2: Convert to fraction form
    38,111.80/57,143.70 = 15,940.60/x
  3. Step 3: Cross multiply
    38,111.80x = 57,143.70 × 15,940.60
  4. Step 4: Simplify right side
    38,111.80x = 910,904,864.22
  5. Step 5: Solve for x
    x = 910,904,864.22/38,111.80
  6. Step 6: Final answer
    x = 23,900.86

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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.