Home / 36,047.16-49,745.12-20,131.64

Finding the Fourth Proportional to 36,047.16, 49,745.12 and 20,131.64

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Solution

The fourth proportional to 36,047.16, 49,745.12 and 20,131.64 is: 27,781.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,047.16 : 49,745.12 = 20,131.64 : x
  2. Step 2: Convert to fraction form
    36,047.16/49,745.12 = 20,131.64/x
  3. Step 3: Cross multiply
    36,047.16x = 49,745.12 × 20,131.64
  4. Step 4: Simplify right side
    36,047.16x = 1,001,450,847.60
  5. Step 5: Solve for x
    x = 1,001,450,847.60/36,047.16
  6. Step 6: Final answer
    x = 27,781.69

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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.