Home / 21,720.22-32,579.65-6,930.02

Finding the Fourth Proportional to 21,720.22, 32,579.65 and 6,930.02

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Solution

The fourth proportional to 21,720.22, 32,579.65 and 6,930.02 is: 10,394.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,720.22 : 32,579.65 = 6,930.02 : x
  2. Step 2: Convert to fraction form
    21,720.22/32,579.65 = 6,930.02/x
  3. Step 3: Cross multiply
    21,720.22x = 32,579.65 × 6,930.02
  4. Step 4: Simplify right side
    21,720.22x = 225,777,626.09
  5. Step 5: Solve for x
    x = 225,777,626.09/21,720.22
  6. Step 6: Final answer
    x = 10,394.81

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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.