Home / 22,272.25-30,734.70-13,324.69

Finding the Fourth Proportional to 22,272.25, 30,734.70 and 13,324.69

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Solution

The fourth proportional to 22,272.25, 30,734.70 and 13,324.69 is: 18,387.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,272.25 : 30,734.70 = 13,324.69 : x
  2. Step 2: Convert to fraction form
    22,272.25/30,734.70 = 13,324.69/x
  3. Step 3: Cross multiply
    22,272.25x = 30,734.70 × 13,324.69
  4. Step 4: Simplify right side
    22,272.25x = 409,530,349.74
  5. Step 5: Solve for x
    x = 409,530,349.74/22,272.25
  6. Step 6: Final answer
    x = 18,387.47

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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.