Home / 22,168.76-30,593.16-13,221.36

Finding the Fourth Proportional to 22,168.76, 30,593.16 and 13,221.36

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Solution

The fourth proportional to 22,168.76, 30,593.16 and 13,221.36 is: 18,245.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,168.76 : 30,593.16 = 13,221.36 : x
  2. Step 2: Convert to fraction form
    22,168.76/30,593.16 = 13,221.36/x
  3. Step 3: Cross multiply
    22,168.76x = 30,593.16 × 13,221.36
  4. Step 4: Simplify right side
    22,168.76x = 404,483,181.90
  5. Step 5: Solve for x
    x = 404,483,181.90/22,168.76
  6. Step 6: Final answer
    x = 18,245.64

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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.