Home / 19,871.28-29,788.34-6,714.44

Finding the Fourth Proportional to 19,871.28, 29,788.34 and 6,714.44

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Solution

The fourth proportional to 19,871.28, 29,788.34 and 6,714.44 is: 10,065.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,871.28 : 29,788.34 = 6,714.44 : x
  2. Step 2: Convert to fraction form
    19,871.28/29,788.34 = 6,714.44/x
  3. Step 3: Cross multiply
    19,871.28x = 29,788.34 × 6,714.44
  4. Step 4: Simplify right side
    19,871.28x = 200,012,021.63
  5. Step 5: Solve for x
    x = 200,012,021.63/19,871.28
  6. Step 6: Final answer
    x = 10,065.38

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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.