Home / 21,179.26-31,749.25-8,022.84

Finding the Fourth Proportional to 21,179.26, 31,749.25 and 8,022.84

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Solution

The fourth proportional to 21,179.26, 31,749.25 and 8,022.84 is: 12,026.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,179.26 : 31,749.25 = 8,022.84 : x
  2. Step 2: Convert to fraction form
    21,179.26/31,749.25 = 8,022.84/x
  3. Step 3: Cross multiply
    21,179.26x = 31,749.25 × 8,022.84
  4. Step 4: Simplify right side
    21,179.26x = 254,719,152.87
  5. Step 5: Solve for x
    x = 254,719,152.87/21,179.26
  6. Step 6: Final answer
    x = 12,026.82

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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.