Home / 36,720.74-50,670.50-20,801.78

Finding the Fourth Proportional to 36,720.74, 50,670.50 and 20,801.78

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Solution

The fourth proportional to 36,720.74, 50,670.50 and 20,801.78 is: 28,704.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,720.74 : 50,670.50 = 20,801.78 : x
  2. Step 2: Convert to fraction form
    36,720.74/50,670.50 = 20,801.78/x
  3. Step 3: Cross multiply
    36,720.74x = 50,670.50 × 20,801.78
  4. Step 4: Simplify right side
    36,720.74x = 1,054,036,593.49
  5. Step 5: Solve for x
    x = 1,054,036,593.49/36,720.74
  6. Step 6: Final answer
    x = 28,704.12

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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.