Home / 38,147.14-57,206.64-13,180.78

Finding the Fourth Proportional to 38,147.14, 57,206.64 and 13,180.78

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Solution

The fourth proportional to 38,147.14, 57,206.64 and 13,180.78 is: 19,766.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,147.14 : 57,206.64 = 13,180.78 : x
  2. Step 2: Convert to fraction form
    38,147.14/57,206.64 = 13,180.78/x
  3. Step 3: Cross multiply
    38,147.14x = 57,206.64 × 13,180.78
  4. Step 4: Simplify right side
    38,147.14x = 754,028,136.38
  5. Step 5: Solve for x
    x = 754,028,136.38/38,147.14
  6. Step 6: Final answer
    x = 19,766.31

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1.5x scale

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.