Home / 21,917.93-32,855.36-8,581.14

Finding the Fourth Proportional to 21,917.93, 32,855.36 and 8,581.14

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Solution

The fourth proportional to 21,917.93, 32,855.36 and 8,581.14 is: 12,863.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,917.93 : 32,855.36 = 8,581.14 : x
  2. Step 2: Convert to fraction form
    21,917.93/32,855.36 = 8,581.14/x
  3. Step 3: Cross multiply
    21,917.93x = 32,855.36 × 8,581.14
  4. Step 4: Simplify right side
    21,917.93x = 281,936,401.00
  5. Step 5: Solve for x
    x = 281,936,401.00/21,917.93
  6. Step 6: Final answer
    x = 12,863.28

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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.