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Finding the Fourth Proportional to 36,000.72, 54,000.90 and 18,460.80

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Solution

The fourth proportional to 36,000.72, 54,000.90 and 18,460.80 is: 27,691.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,000.72 : 54,000.90 = 18,460.80 : x
  2. Step 2: Convert to fraction form
    36,000.72/54,000.90 = 18,460.80/x
  3. Step 3: Cross multiply
    36,000.72x = 54,000.90 × 18,460.80
  4. Step 4: Simplify right side
    36,000.72x = 996,899,814.72
  5. Step 5: Solve for x
    x = 996,899,814.72/36,000.72
  6. Step 6: Final answer
    x = 27,691.11

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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.