Home / 36,190.40-54,272.25-12,491.91

Finding the Fourth Proportional to 36,190.40, 54,272.25 and 12,491.91

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Solution

The fourth proportional to 36,190.40, 54,272.25 and 12,491.91 is: 18,733.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,190.40 : 54,272.25 = 12,491.91 : x
  2. Step 2: Convert to fraction form
    36,190.40/54,272.25 = 12,491.91/x
  3. Step 3: Cross multiply
    36,190.40x = 54,272.25 × 12,491.91
  4. Step 4: Simplify right side
    36,190.40x = 677,964,062.50
  5. Step 5: Solve for x
    x = 677,964,062.50/36,190.40
  6. Step 6: Final answer
    x = 18,733.26

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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.