Home / 21,502.20-32,245.09-10,255.55

Finding the Fourth Proportional to 21,502.20, 32,245.09 and 10,255.55

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Solution

The fourth proportional to 21,502.20, 32,245.09 and 10,255.55 is: 15,379.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,502.20 : 32,245.09 = 10,255.55 : x
  2. Step 2: Convert to fraction form
    21,502.20/32,245.09 = 10,255.55/x
  3. Step 3: Cross multiply
    21,502.20x = 32,245.09 × 10,255.55
  4. Step 4: Simplify right side
    21,502.20x = 330,691,132.75
  5. Step 5: Solve for x
    x = 330,691,132.75/21,502.20
  6. Step 6: Final answer
    x = 15,379.41

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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.