Home / 38,171.54-57,249.78-12,868.55

Finding the Fourth Proportional to 38,171.54, 57,249.78 and 12,868.55

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Solution

The fourth proportional to 38,171.54, 57,249.78 and 12,868.55 is: 19,300.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,171.54 : 57,249.78 = 12,868.55 : x
  2. Step 2: Convert to fraction form
    38,171.54/57,249.78 = 12,868.55/x
  3. Step 3: Cross multiply
    38,171.54x = 57,249.78 × 12,868.55
  4. Step 4: Simplify right side
    38,171.54x = 736,721,799.54
  5. Step 5: Solve for x
    x = 736,721,799.54/38,171.54
  6. Step 6: Final answer
    x = 19,300.29

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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.