Home / 21,440.10-32,161.41-8,292.54

Finding the Fourth Proportional to 21,440.10, 32,161.41 and 8,292.54

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Solution

The fourth proportional to 21,440.10, 32,161.41 and 8,292.54 is: 12,439.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,440.10 : 32,161.41 = 8,292.54 : x
  2. Step 2: Convert to fraction form
    21,440.10/32,161.41 = 8,292.54/x
  3. Step 3: Cross multiply
    21,440.10x = 32,161.41 × 8,292.54
  4. Step 4: Simplify right side
    21,440.10x = 266,699,778.88
  5. Step 5: Solve for x
    x = 266,699,778.88/21,440.10
  6. Step 6: Final answer
    x = 12,439.30

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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.