Home / 22,745.36-31,388.66-13,187.10

Finding the Fourth Proportional to 22,745.36, 31,388.66 and 13,187.10

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Solution

The fourth proportional to 22,745.36, 31,388.66 and 13,187.10 is: 18,198.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,745.36 : 31,388.66 = 13,187.10 : x
  2. Step 2: Convert to fraction form
    22,745.36/31,388.66 = 13,187.10/x
  3. Step 3: Cross multiply
    22,745.36x = 31,388.66 × 13,187.10
  4. Step 4: Simplify right side
    22,745.36x = 413,925,398.29
  5. Step 5: Solve for x
    x = 413,925,398.29/22,745.36
  6. Step 6: Final answer
    x = 18,198.23

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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.