Home / 36,131.19-54,183.30-12,432.09

Finding the Fourth Proportional to 36,131.19, 54,183.30 and 12,432.09

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Solution

The fourth proportional to 36,131.19, 54,183.30 and 12,432.09 is: 18,643.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,131.19 : 54,183.30 = 12,432.09 : x
  2. Step 2: Convert to fraction form
    36,131.19/54,183.30 = 12,432.09/x
  3. Step 3: Cross multiply
    36,131.19x = 54,183.30 × 12,432.09
  4. Step 4: Simplify right side
    36,131.19x = 673,611,662.10
  5. Step 5: Solve for x
    x = 673,611,662.10/36,131.19
  6. Step 6: Final answer
    x = 18,643.50

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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.