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Finding the Fourth Proportional to 20,524.44, 30,752.91 and 8,668.47

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Solution

The fourth proportional to 20,524.44, 30,752.91 and 8,668.47 is: 12,988.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,524.44 : 30,752.91 = 8,668.47 : x
  2. Step 2: Convert to fraction form
    20,524.44/30,752.91 = 8,668.47/x
  3. Step 3: Cross multiply
    20,524.44x = 30,752.91 × 8,668.47
  4. Step 4: Simplify right side
    20,524.44x = 266,580,677.75
  5. Step 5: Solve for x
    x = 266,580,677.75/20,524.44
  6. Step 6: Final answer
    x = 12,988.45

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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.