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Finding the Fourth Proportional to 18,000.30, 27,000.45 and 13,334.70

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Solution

The fourth proportional to 18,000.30, 27,000.45 and 13,334.70 is: 20,002.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,000.30 : 27,000.45 = 13,334.70 : x
  2. Step 2: Convert to fraction form
    18,000.30/27,000.45 = 13,334.70/x
  3. Step 3: Cross multiply
    18,000.30x = 27,000.45 × 13,334.70
  4. Step 4: Simplify right side
    18,000.30x = 360,042,900.62
  5. Step 5: Solve for x
    x = 360,042,900.62/18,000.30
  6. Step 6: Final answer
    x = 20,002.05

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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.