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Finding the Fourth Proportional to 18,110.60, 27,165.90 and 14,392.70

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Solution

The fourth proportional to 18,110.60, 27,165.90 and 14,392.70 is: 21,589.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,110.60 : 27,165.90 = 14,392.70 : x
  2. Step 2: Convert to fraction form
    18,110.60/27,165.90 = 14,392.70/x
  3. Step 3: Cross multiply
    18,110.60x = 27,165.90 × 14,392.70
  4. Step 4: Simplify right side
    18,110.60x = 390,990,648.93
  5. Step 5: Solve for x
    x = 390,990,648.93/18,110.60
  6. Step 6: Final answer
    x = 21,589.05

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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.