Home / 20,467.22-30,643.89-10,450.33

Finding the Fourth Proportional to 20,467.22, 30,643.89 and 10,450.33

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Solution

The fourth proportional to 20,467.22, 30,643.89 and 10,450.33 is: 15,646.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,467.22 : 30,643.89 = 10,450.33 : x
  2. Step 2: Convert to fraction form
    20,467.22/30,643.89 = 10,450.33/x
  3. Step 3: Cross multiply
    20,467.22x = 30,643.89 × 10,450.33
  4. Step 4: Simplify right side
    20,467.22x = 320,238,762.98
  5. Step 5: Solve for x
    x = 320,238,762.98/20,467.22
  6. Step 6: Final answer
    x = 15,646.42

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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.