Home / 36,698.67-50,645.35-20,782.78

Finding the Fourth Proportional to 36,698.67, 50,645.35 and 20,782.78

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Solution

The fourth proportional to 36,698.67, 50,645.35 and 20,782.78 is: 28,680.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,698.67 : 50,645.35 = 20,782.78 : x
  2. Step 2: Convert to fraction form
    36,698.67/50,645.35 = 20,782.78/x
  3. Step 3: Cross multiply
    36,698.67x = 50,645.35 × 20,782.78
  4. Step 4: Simplify right side
    36,698.67x = 1,052,551,066.44
  5. Step 5: Solve for x
    x = 1,052,551,066.44/36,698.67
  6. Step 6: Final answer
    x = 28,680.90

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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.