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Finding the Fourth Proportional to 36,702.58, 50,650.50 and 20,786.80

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Solution

The fourth proportional to 36,702.58, 50,650.50 and 20,786.80 is: 28,686.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,702.58 : 50,650.50 = 20,786.80 : x
  2. Step 2: Convert to fraction form
    36,702.58/50,650.50 = 20,786.80/x
  3. Step 3: Cross multiply
    36,702.58x = 50,650.50 × 20,786.80
  4. Step 4: Simplify right side
    36,702.58x = 1,052,861,813.40
  5. Step 5: Solve for x
    x = 1,052,861,813.40/36,702.58
  6. Step 6: Final answer
    x = 28,686.32

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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.