Home / 22,069.26-30,459.65-13,122

Finding the Fourth Proportional to 22,069.26, 30,459.65 and 13,122

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Solution

The fourth proportional to 22,069.26, 30,459.65 and 13,122 is: 18,110.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,069.26 : 30,459.65 = 13,122 : x
  2. Step 2: Convert to fraction form
    22,069.26/30,459.65 = 13,122/x
  3. Step 3: Cross multiply
    22,069.26x = 30,459.65 × 13,122
  4. Step 4: Simplify right side
    22,069.26x = 399,691,461.69
  5. Step 5: Solve for x
    x = 399,691,461.69/22,069.26
  6. Step 6: Final answer
    x = 18,110.78

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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.