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Finding the Fourth Proportional to 36,893.25, 50,915.07 and 20,979.18

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Solution

The fourth proportional to 36,893.25, 50,915.07 and 20,979.18 is: 28,952.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,893.25 : 50,915.07 = 20,979.18 : x
  2. Step 2: Convert to fraction form
    36,893.25/50,915.07 = 20,979.18/x
  3. Step 3: Cross multiply
    36,893.25x = 50,915.07 × 20,979.18
  4. Step 4: Simplify right side
    36,893.25x = 1,068,156,418.24
  5. Step 5: Solve for x
    x = 1,068,156,418.24/36,893.25
  6. Step 6: Final answer
    x = 28,952.62

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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.