Home / 36,690.61-50,633.24-20,778.16

Finding the Fourth Proportional to 36,690.61, 50,633.24 and 20,778.16

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Solution

The fourth proportional to 36,690.61, 50,633.24 and 20,778.16 is: 28,673.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,690.61 : 50,633.24 = 20,778.16 : x
  2. Step 2: Convert to fraction form
    36,690.61/50,633.24 = 20,778.16/x
  3. Step 3: Cross multiply
    36,690.61x = 50,633.24 × 20,778.16
  4. Step 4: Simplify right side
    36,690.61x = 1,052,065,677.28
  5. Step 5: Solve for x
    x = 1,052,065,677.28/36,690.61
  6. Step 6: Final answer
    x = 28,673.98

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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.