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Finding the Fourth Proportional to 36,874.49, 50,886.32 and 20,957.89

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Solution

The fourth proportional to 36,874.49, 50,886.32 and 20,957.89 is: 28,921.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,874.49 : 50,886.32 = 20,957.89 : x
  2. Step 2: Convert to fraction form
    36,874.49/50,886.32 = 20,957.89/x
  3. Step 3: Cross multiply
    36,874.49x = 50,886.32 × 20,957.89
  4. Step 4: Simplify right side
    36,874.49x = 1,066,469,897.06
  5. Step 5: Solve for x
    x = 1,066,469,897.06/36,874.49
  6. Step 6: Final answer
    x = 28,921.62

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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.