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Finding the Fourth Proportional to 30,491.01, 45,736.88 and 10,755.72

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Solution

The fourth proportional to 30,491.01, 45,736.88 and 10,755.72 is: 16,133.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,491.01 : 45,736.88 = 10,755.72 : x
  2. Step 2: Convert to fraction form
    30,491.01/45,736.88 = 10,755.72/x
  3. Step 3: Cross multiply
    30,491.01x = 45,736.88 × 10,755.72
  4. Step 4: Simplify right side
    30,491.01x = 491,933,021.18
  5. Step 5: Solve for x
    x = 491,933,021.18/30,491.01
  6. Step 6: Final answer
    x = 16,133.71

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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.