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Finding the Fourth Proportional to 19,804.48, 29,711.67 and 13,972.48

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Solution

The fourth proportional to 19,804.48, 29,711.67 and 13,972.48 is: 20,962.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,804.48 : 29,711.67 = 13,972.48 : x
  2. Step 2: Convert to fraction form
    19,804.48/29,711.67 = 13,972.48/x
  3. Step 3: Cross multiply
    19,804.48x = 29,711.67 × 13,972.48
  4. Step 4: Simplify right side
    19,804.48x = 415,145,714.84
  5. Step 5: Solve for x
    x = 415,145,714.84/19,804.48
  6. Step 6: Final answer
    x = 20,962.21

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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.