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Finding the Fourth Proportional to 18,558.90, 27,800.64 and 14,817

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Solution

The fourth proportional to 18,558.90, 27,800.64 and 14,817 is: 22,195.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,558.90 : 27,800.64 = 14,817 : x
  2. Step 2: Convert to fraction form
    18,558.90/27,800.64 = 14,817/x
  3. Step 3: Cross multiply
    18,558.90x = 27,800.64 × 14,817
  4. Step 4: Simplify right side
    18,558.90x = 411,922,082.88
  5. Step 5: Solve for x
    x = 411,922,082.88/18,558.90
  6. Step 6: Final answer
    x = 22,195.39

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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.