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Finding the Fourth Proportional to 36,759.80, 50,737.78 and 20,853.80

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Solution

The fourth proportional to 36,759.80, 50,737.78 and 20,853.80 is: 28,783.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,759.80 : 50,737.78 = 20,853.80 : x
  2. Step 2: Convert to fraction form
    36,759.80/50,737.78 = 20,853.80/x
  3. Step 3: Cross multiply
    36,759.80x = 50,737.78 × 20,853.80
  4. Step 4: Simplify right side
    36,759.80x = 1,058,075,516.56
  5. Step 5: Solve for x
    x = 1,058,075,516.56/36,759.80
  6. Step 6: Final answer
    x = 28,783.49

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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.