Home / 28,196.10-38,911.90-16,099.86

Finding the Fourth Proportional to 28,196.10, 38,911.90 and 16,099.86

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Solution

The fourth proportional to 28,196.10, 38,911.90 and 16,099.86 is: 22,218.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,196.10 : 38,911.90 = 16,099.86 : x
  2. Step 2: Convert to fraction form
    28,196.10/38,911.90 = 16,099.86/x
  3. Step 3: Cross multiply
    28,196.10x = 38,911.90 × 16,099.86
  4. Step 4: Simplify right side
    28,196.10x = 626,476,142.33
  5. Step 5: Solve for x
    x = 626,476,142.33/28,196.10
  6. Step 6: Final answer
    x = 22,218.54

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.