Home / 38,119.84-57,189.73-13,161.61

Finding the Fourth Proportional to 38,119.84, 57,189.73 and 13,161.61

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Solution

The fourth proportional to 38,119.84, 57,189.73 and 13,161.61 is: 19,745.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,119.84 : 57,189.73 = 13,161.61 : x
  2. Step 2: Convert to fraction form
    38,119.84/57,189.73 = 13,161.61/x
  3. Step 3: Cross multiply
    38,119.84x = 57,189.73 × 13,161.61
  4. Step 4: Simplify right side
    38,119.84x = 752,708,922.27
  5. Step 5: Solve for x
    x = 752,708,922.27/38,119.84
  6. Step 6: Final answer
    x = 19,745.86

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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.