Home / 22,122.76-30,517.74-13,163.88

Finding the Fourth Proportional to 22,122.76, 30,517.74 and 13,163.88

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Solution

The fourth proportional to 22,122.76, 30,517.74 and 13,163.88 is: 18,159.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,122.76 : 30,517.74 = 13,163.88 : x
  2. Step 2: Convert to fraction form
    22,122.76/30,517.74 = 13,163.88/x
  3. Step 3: Cross multiply
    22,122.76x = 30,517.74 × 13,163.88
  4. Step 4: Simplify right side
    22,122.76x = 401,731,867.23
  5. Step 5: Solve for x
    x = 401,731,867.23/22,122.76
  6. Step 6: Final answer
    x = 18,159.21

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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.