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Finding the Fourth Proportional to 18,650.88, 27,994.68 and 15,550.74

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Solution

The fourth proportional to 18,650.88, 27,994.68 and 15,550.74 is: 23,341.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,650.88 : 27,994.68 = 15,550.74 : x
  2. Step 2: Convert to fraction form
    18,650.88/27,994.68 = 15,550.74/x
  3. Step 3: Cross multiply
    18,650.88x = 27,994.68 × 15,550.74
  4. Step 4: Simplify right side
    18,650.88x = 435,337,990.06
  5. Step 5: Solve for x
    x = 435,337,990.06/18,650.88
  6. Step 6: Final answer
    x = 23,341.42

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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.