Home / 36,188.40-54,282.60-12,495.90

Finding the Fourth Proportional to 36,188.40, 54,282.60 and 12,495.90

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Solution

The fourth proportional to 36,188.40, 54,282.60 and 12,495.90 is: 18,743.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,188.40 : 54,282.60 = 12,495.90 : x
  2. Step 2: Convert to fraction form
    36,188.40/54,282.60 = 12,495.90/x
  3. Step 3: Cross multiply
    36,188.40x = 54,282.60 × 12,495.90
  4. Step 4: Simplify right side
    36,188.40x = 678,309,941.34
  5. Step 5: Solve for x
    x = 678,309,941.34/36,188.40
  6. Step 6: Final answer
    x = 18,743.85

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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.