Home / 38,110.80-57,142.20-15,939.60

Finding the Fourth Proportional to 38,110.80, 57,142.20 and 15,939.60

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Solution

The fourth proportional to 38,110.80, 57,142.20 and 15,939.60 is: 23,899.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,110.80 : 57,142.20 = 15,939.60 : x
  2. Step 2: Convert to fraction form
    38,110.80/57,142.20 = 15,939.60/x
  3. Step 3: Cross multiply
    38,110.80x = 57,142.20 × 15,939.60
  4. Step 4: Simplify right side
    38,110.80x = 910,823,811.12
  5. Step 5: Solve for x
    x = 910,823,811.12/38,110.80
  6. Step 6: Final answer
    x = 23,899.36

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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.