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Finding the Fourth Proportional to 18,281.70, 27,422.55 and 15,110.55

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Solution

The fourth proportional to 18,281.70, 27,422.55 and 15,110.55 is: 22,665.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,281.70 : 27,422.55 = 15,110.55 : x
  2. Step 2: Convert to fraction form
    18,281.70/27,422.55 = 15,110.55/x
  3. Step 3: Cross multiply
    18,281.70x = 27,422.55 × 15,110.55
  4. Step 4: Simplify right side
    18,281.70x = 414,369,812.90
  5. Step 5: Solve for x
    x = 414,369,812.90/18,281.70
  6. Step 6: Final answer
    x = 22,665.83

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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.