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Finding the Fourth Proportional to 36,000.10, 54,000.15 and 18,471.70

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Solution

The fourth proportional to 36,000.10, 54,000.15 and 18,471.70 is: 27,707.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,000.10 : 54,000.15 = 18,471.70 : x
  2. Step 2: Convert to fraction form
    36,000.10/54,000.15 = 18,471.70/x
  3. Step 3: Cross multiply
    36,000.10x = 54,000.15 × 18,471.70
  4. Step 4: Simplify right side
    36,000.10x = 997,474,570.76
  5. Step 5: Solve for x
    x = 997,474,570.76/36,000.10
  6. Step 6: Final answer
    x = 27,707.55

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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.