Home / 21,498.75-32,239.85-8,349.39

Finding the Fourth Proportional to 21,498.75, 32,239.85 and 8,349.39

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Solution

The fourth proportional to 21,498.75, 32,239.85 and 8,349.39 is: 12,520.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,498.75 : 32,239.85 = 8,349.39 : x
  2. Step 2: Convert to fraction form
    21,498.75/32,239.85 = 8,349.39/x
  3. Step 3: Cross multiply
    21,498.75x = 32,239.85 × 8,349.39
  4. Step 4: Simplify right side
    21,498.75x = 269,183,039.44
  5. Step 5: Solve for x
    x = 269,183,039.44/21,498.75
  6. Step 6: Final answer
    x = 12,520.87

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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.