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Finding the Fourth Proportional to 20,266.63, 30,408.71 and 10,895.69

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Solution

The fourth proportional to 20,266.63, 30,408.71 and 10,895.69 is: 16,348.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,266.63 : 30,408.71 = 10,895.69 : x
  2. Step 2: Convert to fraction form
    20,266.63/30,408.71 = 10,895.69/x
  3. Step 3: Cross multiply
    20,266.63x = 30,408.71 × 10,895.69
  4. Step 4: Simplify right side
    20,266.63x = 331,323,899.00
  5. Step 5: Solve for x
    x = 331,323,899.00/20,266.63
  6. Step 6: Final answer
    x = 16,348.25

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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.