Home / 21,090.26-31,635.99-6,299.46

Finding the Fourth Proportional to 21,090.26, 31,635.99 and 6,299.46

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Solution

The fourth proportional to 21,090.26, 31,635.99 and 6,299.46 is: 9,449.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,090.26 : 31,635.99 = 6,299.46 : x
  2. Step 2: Convert to fraction form
    21,090.26/31,635.99 = 6,299.46/x
  3. Step 3: Cross multiply
    21,090.26x = 31,635.99 × 6,299.46
  4. Step 4: Simplify right side
    21,090.26x = 199,289,653.57
  5. Step 5: Solve for x
    x = 199,289,653.57/21,090.26
  6. Step 6: Final answer
    x = 9,449.37

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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.