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Finding the Fourth Proportional to 20,446.50, 30,668.04 and 5,655.60

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Solution

The fourth proportional to 20,446.50, 30,668.04 and 5,655.60 is: 8,482.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,446.50 : 30,668.04 = 5,655.60 : x
  2. Step 2: Convert to fraction form
    20,446.50/30,668.04 = 5,655.60/x
  3. Step 3: Cross multiply
    20,446.50x = 30,668.04 × 5,655.60
  4. Step 4: Simplify right side
    20,446.50x = 173,446,167.02
  5. Step 5: Solve for x
    x = 173,446,167.02/20,446.50
  6. Step 6: Final answer
    x = 8,482.93

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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.