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Finding the Fourth Proportional to 33,830.20, 50,648.10 and 20,708.20

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Solution

The fourth proportional to 33,830.20, 50,648.10 and 20,708.20 is: 31,002.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,830.20 : 50,648.10 = 20,708.20 : x
  2. Step 2: Convert to fraction form
    33,830.20/50,648.10 = 20,708.20/x
  3. Step 3: Cross multiply
    33,830.20x = 50,648.10 × 20,708.20
  4. Step 4: Simplify right side
    33,830.20x = 1,048,830,984.42
  5. Step 5: Solve for x
    x = 1,048,830,984.42/33,830.20
  6. Step 6: Final answer
    x = 31,002.80

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.