Home / 31,170.09-43,017.03-17,745.69

Finding the Fourth Proportional to 31,170.09, 43,017.03 and 17,745.69

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Solution

The fourth proportional to 31,170.09, 43,017.03 and 17,745.69 is: 24,490.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,170.09 : 43,017.03 = 17,745.69 : x
  2. Step 2: Convert to fraction form
    31,170.09/43,017.03 = 17,745.69/x
  3. Step 3: Cross multiply
    31,170.09x = 43,017.03 × 17,745.69
  4. Step 4: Simplify right side
    31,170.09x = 763,366,879.10
  5. Step 5: Solve for x
    x = 763,366,879.10/31,170.09
  6. Step 6: Final answer
    x = 24,490.36

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.