Home / 20,411.31-30,607.73-7,264.03

Finding the Fourth Proportional to 20,411.31, 30,607.73 and 7,264.03

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Solution

The fourth proportional to 20,411.31, 30,607.73 and 7,264.03 is: 10,892.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,411.31 : 30,607.73 = 7,264.03 : x
  2. Step 2: Convert to fraction form
    20,411.31/30,607.73 = 7,264.03/x
  3. Step 3: Cross multiply
    20,411.31x = 30,607.73 × 7,264.03
  4. Step 4: Simplify right side
    20,411.31x = 222,335,468.95
  5. Step 5: Solve for x
    x = 222,335,468.95/20,411.31
  6. Step 6: Final answer
    x = 10,892.76

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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.