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Finding the Fourth Proportional to 36,512, 50,386.56 and 21,608

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Solution

The fourth proportional to 36,512, 50,386.56 and 21,608 is: 29,819.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,512 : 50,386.56 = 21,608 : x
  2. Step 2: Convert to fraction form
    36,512/50,386.56 = 21,608/x
  3. Step 3: Cross multiply
    36,512x = 50,386.56 × 21,608
  4. Step 4: Simplify right side
    36,512x = 1,088,752,788.48
  5. Step 5: Solve for x
    x = 1,088,752,788.48/36,512
  6. Step 6: Final answer
    x = 29,819.04

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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.