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Finding the Fourth Proportional to 20,462.67, 30,704.49 and 12,041.42

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Solution

The fourth proportional to 20,462.67, 30,704.49 and 12,041.42 is: 18,068.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,462.67 : 30,704.49 = 12,041.42 : x
  2. Step 2: Convert to fraction form
    20,462.67/30,704.49 = 12,041.42/x
  3. Step 3: Cross multiply
    20,462.67x = 30,704.49 × 12,041.42
  4. Step 4: Simplify right side
    20,462.67x = 369,725,506.45
  5. Step 5: Solve for x
    x = 369,725,506.45/20,462.67
  6. Step 6: Final answer
    x = 18,068.29

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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.