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Finding the Fourth Proportional to 19,814.70, 29,695.05 and 12,773.10

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Solution

The fourth proportional to 19,814.70, 29,695.05 and 12,773.10 is: 19,142.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,814.70 : 29,695.05 = 12,773.10 : x
  2. Step 2: Convert to fraction form
    19,814.70/29,695.05 = 12,773.10/x
  3. Step 3: Cross multiply
    19,814.70x = 29,695.05 × 12,773.10
  4. Step 4: Simplify right side
    19,814.70x = 379,297,843.16
  5. Step 5: Solve for x
    x = 379,297,843.16/19,814.70
  6. Step 6: Final answer
    x = 19,142.25

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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.