Home / 21,828.22-32,742.64-6,245.80

Finding the Fourth Proportional to 21,828.22, 32,742.64 and 6,245.80

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Solution

The fourth proportional to 21,828.22, 32,742.64 and 6,245.80 is: 9,368.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,828.22 : 32,742.64 = 6,245.80 : x
  2. Step 2: Convert to fraction form
    21,828.22/32,742.64 = 6,245.80/x
  3. Step 3: Cross multiply
    21,828.22x = 32,742.64 × 6,245.80
  4. Step 4: Simplify right side
    21,828.22x = 204,503,980.91
  5. Step 5: Solve for x
    x = 204,503,980.91/21,828.22
  6. Step 6: Final answer
    x = 9,368.79

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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.