Home / 20,954.14-31,411.41-7,797.58

Finding the Fourth Proportional to 20,954.14, 31,411.41 and 7,797.58

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Solution

The fourth proportional to 20,954.14, 31,411.41 and 7,797.58 is: 11,689.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,954.14 : 31,411.41 = 7,797.58 : x
  2. Step 2: Convert to fraction form
    20,954.14/31,411.41 = 7,797.58/x
  3. Step 3: Cross multiply
    20,954.14x = 31,411.41 × 7,797.58
  4. Step 4: Simplify right side
    20,954.14x = 244,932,982.39
  5. Step 5: Solve for x
    x = 244,932,982.39/20,954.14
  6. Step 6: Final answer
    x = 11,689.00

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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.