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Finding the Fourth Proportional to 36,757.50, 50,731.01 and 20,838.57

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Solution

The fourth proportional to 36,757.50, 50,731.01 and 20,838.57 is: 28,760.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,757.50 : 50,731.01 = 20,838.57 : x
  2. Step 2: Convert to fraction form
    36,757.50/50,731.01 = 20,838.57/x
  3. Step 3: Cross multiply
    36,757.50x = 50,731.01 × 20,838.57
  4. Step 4: Simplify right side
    36,757.50x = 1,057,161,703.06
  5. Step 5: Solve for x
    x = 1,057,161,703.06/36,757.50
  6. Step 6: Final answer
    x = 28,760.44

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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.