Home / 20,886-31,325.97-6,090.96

Finding the Fourth Proportional to 20,886, 31,325.97 and 6,090.96

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Solution

The fourth proportional to 20,886, 31,325.97 and 6,090.96 is: 9,135.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,886 : 31,325.97 = 6,090.96 : x
  2. Step 2: Convert to fraction form
    20,886/31,325.97 = 6,090.96/x
  3. Step 3: Cross multiply
    20,886x = 31,325.97 × 6,090.96
  4. Step 4: Simplify right side
    20,886x = 190,805,230.23
  5. Step 5: Solve for x
    x = 190,805,230.23/20,886
  6. Step 6: Final answer
    x = 9,135.56

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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.