Home / 21,405.26-32,110.05-8,074.91

Finding the Fourth Proportional to 21,405.26, 32,110.05 and 8,074.91

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Solution

The fourth proportional to 21,405.26, 32,110.05 and 8,074.91 is: 12,113.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,405.26 : 32,110.05 = 8,074.91 : x
  2. Step 2: Convert to fraction form
    21,405.26/32,110.05 = 8,074.91/x
  3. Step 3: Cross multiply
    21,405.26x = 32,110.05 × 8,074.91
  4. Step 4: Simplify right side
    21,405.26x = 259,285,763.85
  5. Step 5: Solve for x
    x = 259,285,763.85/21,405.26
  6. Step 6: Final answer
    x = 12,113.18

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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.