Home / 22,703.88-31,321.20-13,268.28

Finding the Fourth Proportional to 22,703.88, 31,321.20 and 13,268.28

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Solution

The fourth proportional to 22,703.88, 31,321.20 and 13,268.28 is: 18,304.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,703.88 : 31,321.20 = 13,268.28 : x
  2. Step 2: Convert to fraction form
    22,703.88/31,321.20 = 13,268.28/x
  3. Step 3: Cross multiply
    22,703.88x = 31,321.20 × 13,268.28
  4. Step 4: Simplify right side
    22,703.88x = 415,578,451.54
  5. Step 5: Solve for x
    x = 415,578,451.54/22,703.88
  6. Step 6: Final answer
    x = 18,304.29

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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.