Home / 36,893.75-50,913.39-20,979.18

Finding the Fourth Proportional to 36,893.75, 50,913.39 and 20,979.18

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Solution

The fourth proportional to 36,893.75, 50,913.39 and 20,979.18 is: 28,951.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,893.75 : 50,913.39 = 20,979.18 : x
  2. Step 2: Convert to fraction form
    36,893.75/50,913.39 = 20,979.18/x
  3. Step 3: Cross multiply
    36,893.75x = 50,913.39 × 20,979.18
  4. Step 4: Simplify right side
    36,893.75x = 1,068,121,173.22
  5. Step 5: Solve for x
    x = 1,068,121,173.22/36,893.75
  6. Step 6: Final answer
    x = 28,951.28

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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.