Home / 36,172.20-54,189.72-21,336.96

Finding the Fourth Proportional to 36,172.20, 54,189.72 and 21,336.96

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Solution

The fourth proportional to 36,172.20, 54,189.72 and 21,336.96 is: 31,964.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,172.20 : 54,189.72 = 21,336.96 : x
  2. Step 2: Convert to fraction form
    36,172.20/54,189.72 = 21,336.96/x
  3. Step 3: Cross multiply
    36,172.20x = 54,189.72 × 21,336.96
  4. Step 4: Simplify right side
    36,172.20x = 1,156,243,888.05
  5. Step 5: Solve for x
    x = 1,156,243,888.05/36,172.20
  6. Step 6: Final answer
    x = 31,964.99

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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.