Home / 22,296.60-30,764.97-13,220.28

Finding the Fourth Proportional to 22,296.60, 30,764.97 and 13,220.28

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Solution

The fourth proportional to 22,296.60, 30,764.97 and 13,220.28 is: 18,241.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,296.60 : 30,764.97 = 13,220.28 : x
  2. Step 2: Convert to fraction form
    22,296.60/30,764.97 = 13,220.28/x
  3. Step 3: Cross multiply
    22,296.60x = 30,764.97 × 13,220.28
  4. Step 4: Simplify right side
    22,296.60x = 406,721,517.59
  5. Step 5: Solve for x
    x = 406,721,517.59/22,296.60
  6. Step 6: Final answer
    x = 18,241.41

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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.