Home / 19,861.18-29,791.38-8,014.64

Finding the Fourth Proportional to 19,861.18, 29,791.38 and 8,014.64

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Solution

The fourth proportional to 19,861.18, 29,791.38 and 8,014.64 is: 12,021.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,861.18 : 29,791.38 = 8,014.64 : x
  2. Step 2: Convert to fraction form
    19,861.18/29,791.38 = 8,014.64/x
  3. Step 3: Cross multiply
    19,861.18x = 29,791.38 × 8,014.64
  4. Step 4: Simplify right side
    19,861.18x = 238,767,036.85
  5. Step 5: Solve for x
    x = 238,767,036.85/19,861.18
  6. Step 6: Final answer
    x = 12,021.80

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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.