Home / 22,157.22-30,577.24-13,209.88

Finding the Fourth Proportional to 22,157.22, 30,577.24 and 13,209.88

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Solution

The fourth proportional to 22,157.22, 30,577.24 and 13,209.88 is: 18,229.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,157.22 : 30,577.24 = 13,209.88 : x
  2. Step 2: Convert to fraction form
    22,157.22/30,577.24 = 13,209.88/x
  3. Step 3: Cross multiply
    22,157.22x = 30,577.24 × 13,209.88
  4. Step 4: Simplify right side
    22,157.22x = 403,921,671.13
  5. Step 5: Solve for x
    x = 403,921,671.13/22,157.22
  6. Step 6: Final answer
    x = 18,229.80

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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.