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Finding the Fourth Proportional to 18,658.62, 27,997.65 and 17,582.94

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Solution

The fourth proportional to 18,658.62, 27,997.65 and 17,582.94 is: 26,383.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,658.62 : 27,997.65 = 17,582.94 : x
  2. Step 2: Convert to fraction form
    18,658.62/27,997.65 = 17,582.94/x
  3. Step 3: Cross multiply
    18,658.62x = 27,997.65 × 17,582.94
  4. Step 4: Simplify right side
    18,658.62x = 492,281,000.09
  5. Step 5: Solve for x
    x = 492,281,000.09/18,658.62
  6. Step 6: Final answer
    x = 26,383.57

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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.