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Finding the Fourth Proportional to 20,042.19, 30,060.81 and 8,353.89

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Solution

The fourth proportional to 20,042.19, 30,060.81 and 8,353.89 is: 12,529.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,042.19 : 30,060.81 = 8,353.89 : x
  2. Step 2: Convert to fraction form
    20,042.19/30,060.81 = 8,353.89/x
  3. Step 3: Cross multiply
    20,042.19x = 30,060.81 × 8,353.89
  4. Step 4: Simplify right side
    20,042.19x = 251,124,700.05
  5. Step 5: Solve for x
    x = 251,124,700.05/20,042.19
  6. Step 6: Final answer
    x = 12,529.80

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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.