Home / 21,453.24-32,170.74-11,589.86

Finding the Fourth Proportional to 21,453.24, 32,170.74 and 11,589.86

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Solution

The fourth proportional to 21,453.24, 32,170.74 and 11,589.86 is: 17,379.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,453.24 : 32,170.74 = 11,589.86 : x
  2. Step 2: Convert to fraction form
    21,453.24/32,170.74 = 11,589.86/x
  3. Step 3: Cross multiply
    21,453.24x = 32,170.74 × 11,589.86
  4. Step 4: Simplify right side
    21,453.24x = 372,854,372.70
  5. Step 5: Solve for x
    x = 372,854,372.70/21,453.24
  6. Step 6: Final answer
    x = 17,379.86

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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.