Home / 21,409.22-32,116.91-6,619.43

Finding the Fourth Proportional to 21,409.22, 32,116.91 and 6,619.43

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Solution

The fourth proportional to 21,409.22, 32,116.91 and 6,619.43 is: 9,930.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,409.22 : 32,116.91 = 6,619.43 : x
  2. Step 2: Convert to fraction form
    21,409.22/32,116.91 = 6,619.43/x
  3. Step 3: Cross multiply
    21,409.22x = 32,116.91 × 6,619.43
  4. Step 4: Simplify right side
    21,409.22x = 212,595,443.88
  5. Step 5: Solve for x
    x = 212,595,443.88/21,409.22
  6. Step 6: Final answer
    x = 9,930.09

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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.