Home / 38,120.13-57,146.13-19,389.69

Finding the Fourth Proportional to 38,120.13, 57,146.13 and 19,389.69

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Solution

The fourth proportional to 38,120.13, 57,146.13 and 19,389.69 is: 29,067.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,120.13 : 57,146.13 = 19,389.69 : x
  2. Step 2: Convert to fraction form
    38,120.13/57,146.13 = 19,389.69/x
  3. Step 3: Cross multiply
    38,120.13x = 57,146.13 × 19,389.69
  4. Step 4: Simplify right side
    38,120.13x = 1,108,045,745.40
  5. Step 5: Solve for x
    x = 1,108,045,745.40/38,120.13
  6. Step 6: Final answer
    x = 29,067.21

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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.