Home / 38,696.13-57,966.43-20,189.25

Finding the Fourth Proportional to 38,696.13, 57,966.43 and 20,189.25

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Solution

The fourth proportional to 38,696.13, 57,966.43 and 20,189.25 is: 30,243.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,696.13 : 57,966.43 = 20,189.25 : x
  2. Step 2: Convert to fraction form
    38,696.13/57,966.43 = 20,189.25/x
  3. Step 3: Cross multiply
    38,696.13x = 57,966.43 × 20,189.25
  4. Step 4: Simplify right side
    38,696.13x = 1,170,298,746.88
  5. Step 5: Solve for x
    x = 1,170,298,746.88/38,696.13
  6. Step 6: Final answer
    x = 30,243.30

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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.