Home / 21,339.26-32,012.99-8,190.59

Finding the Fourth Proportional to 21,339.26, 32,012.99 and 8,190.59

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Solution

The fourth proportional to 21,339.26, 32,012.99 and 8,190.59 is: 12,287.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,339.26 : 32,012.99 = 8,190.59 : x
  2. Step 2: Convert to fraction form
    21,339.26/32,012.99 = 8,190.59/x
  3. Step 3: Cross multiply
    21,339.26x = 32,012.99 × 8,190.59
  4. Step 4: Simplify right side
    21,339.26x = 262,205,234.81
  5. Step 5: Solve for x
    x = 262,205,234.81/21,339.26
  6. Step 6: Final answer
    x = 12,287.46

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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.