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Finding the Fourth Proportional to 18,241.20, 27,358.20 and 8,881.20

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Solution

The fourth proportional to 18,241.20, 27,358.20 and 8,881.20 is: 13,320.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,241.20 : 27,358.20 = 8,881.20 : x
  2. Step 2: Convert to fraction form
    18,241.20/27,358.20 = 8,881.20/x
  3. Step 3: Cross multiply
    18,241.20x = 27,358.20 × 8,881.20
  4. Step 4: Simplify right side
    18,241.20x = 242,973,645.84
  5. Step 5: Solve for x
    x = 242,973,645.84/18,241.20
  6. Step 6: Final answer
    x = 13,320.05

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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.