Home / 22,321.32-30,791.80-13,241.40

Finding the Fourth Proportional to 22,321.32, 30,791.80 and 13,241.40

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Solution

The fourth proportional to 22,321.32, 30,791.80 and 13,241.40 is: 18,266.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,321.32 : 30,791.80 = 13,241.40 : x
  2. Step 2: Convert to fraction form
    22,321.32/30,791.80 = 13,241.40/x
  3. Step 3: Cross multiply
    22,321.32x = 30,791.80 × 13,241.40
  4. Step 4: Simplify right side
    22,321.32x = 407,726,540.52
  5. Step 5: Solve for x
    x = 407,726,540.52/22,321.32
  6. Step 6: Final answer
    x = 18,266.24

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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.