Home / 21,781.48-32,676.06-10,107.88

Finding the Fourth Proportional to 21,781.48, 32,676.06 and 10,107.88

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Solution

The fourth proportional to 21,781.48, 32,676.06 and 10,107.88 is: 15,163.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,781.48 : 32,676.06 = 10,107.88 : x
  2. Step 2: Convert to fraction form
    21,781.48/32,676.06 = 10,107.88/x
  3. Step 3: Cross multiply
    21,781.48x = 32,676.06 × 10,107.88
  4. Step 4: Simplify right side
    21,781.48x = 330,285,693.35
  5. Step 5: Solve for x
    x = 330,285,693.35/21,781.48
  6. Step 6: Final answer
    x = 15,163.60

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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.