Home / 21,626.39-32,453.26-8,478.42

Finding the Fourth Proportional to 21,626.39, 32,453.26 and 8,478.42

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Solution

The fourth proportional to 21,626.39, 32,453.26 and 8,478.42 is: 12,722.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,626.39 : 32,453.26 = 8,478.42 : x
  2. Step 2: Convert to fraction form
    21,626.39/32,453.26 = 8,478.42/x
  3. Step 3: Cross multiply
    21,626.39x = 32,453.26 × 8,478.42
  4. Step 4: Simplify right side
    21,626.39x = 275,152,408.30
  5. Step 5: Solve for x
    x = 275,152,408.30/21,626.39
  6. Step 6: Final answer
    x = 12,722.99

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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.