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Finding the Fourth Proportional to 22,287.92, 33,214.81 and 21,612.09

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Solution

The fourth proportional to 22,287.92, 33,214.81 and 21,612.09 is: 32,207.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,287.92 : 33,214.81 = 21,612.09 : x
  2. Step 2: Convert to fraction form
    22,287.92/33,214.81 = 21,612.09/x
  3. Step 3: Cross multiply
    22,287.92x = 33,214.81 × 21,612.09
  4. Step 4: Simplify right side
    22,287.92x = 717,841,307.21
  5. Step 5: Solve for x
    x = 717,841,307.21/22,287.92
  6. Step 6: Final answer
    x = 32,207.64

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.