Home / 20,266.31-30,398.31-5,474.11

Finding the Fourth Proportional to 20,266.31, 30,398.31 and 5,474.11

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Solution

The fourth proportional to 20,266.31, 30,398.31 and 5,474.11 is: 8,210.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,266.31 : 30,398.31 = 5,474.11 : x
  2. Step 2: Convert to fraction form
    20,266.31/30,398.31 = 5,474.11/x
  3. Step 3: Cross multiply
    20,266.31x = 30,398.31 × 5,474.11
  4. Step 4: Simplify right side
    20,266.31x = 166,403,616.76
  5. Step 5: Solve for x
    x = 166,403,616.76/20,266.31
  6. Step 6: Final answer
    x = 8,210.85

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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.