Home / 20,181.48-30,252.78-10,814.64

Finding the Fourth Proportional to 20,181.48, 30,252.78 and 10,814.64

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Solution

The fourth proportional to 20,181.48, 30,252.78 and 10,814.64 is: 16,211.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,181.48 : 30,252.78 = 10,814.64 : x
  2. Step 2: Convert to fraction form
    20,181.48/30,252.78 = 10,814.64/x
  3. Step 3: Cross multiply
    20,181.48x = 30,252.78 × 10,814.64
  4. Step 4: Simplify right side
    20,181.48x = 327,172,924.70
  5. Step 5: Solve for x
    x = 327,172,924.70/20,181.48
  6. Step 6: Final answer
    x = 16,211.54

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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.