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Finding the Fourth Proportional to 18,151.40, 27,227.10 and 14,911.40

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Solution

The fourth proportional to 18,151.40, 27,227.10 and 14,911.40 is: 22,367.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,151.40 : 27,227.10 = 14,911.40 : x
  2. Step 2: Convert to fraction form
    18,151.40/27,227.10 = 14,911.40/x
  3. Step 3: Cross multiply
    18,151.40x = 27,227.10 × 14,911.40
  4. Step 4: Simplify right side
    18,151.40x = 405,994,178.94
  5. Step 5: Solve for x
    x = 405,994,178.94/18,151.40
  6. Step 6: Final answer
    x = 22,367.10

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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.