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Finding the Fourth Proportional to 19,806.48, 29,714.67 and 13,974.48

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Solution

The fourth proportional to 19,806.48, 29,714.67 and 13,974.48 is: 20,965.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,806.48 : 29,714.67 = 13,974.48 : x
  2. Step 2: Convert to fraction form
    19,806.48/29,714.67 = 13,974.48/x
  3. Step 3: Cross multiply
    19,806.48x = 29,714.67 × 13,974.48
  4. Step 4: Simplify right side
    19,806.48x = 415,247,061.62
  5. Step 5: Solve for x
    x = 415,247,061.62/19,806.48
  6. Step 6: Final answer
    x = 20,965.21

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1.5x scale

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.