Home / 20,954.04-31,435.47-6,161.72

Finding the Fourth Proportional to 20,954.04, 31,435.47 and 6,161.72

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Solution

The fourth proportional to 20,954.04, 31,435.47 and 6,161.72 is: 9,243.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,954.04 : 31,435.47 = 6,161.72 : x
  2. Step 2: Convert to fraction form
    20,954.04/31,435.47 = 6,161.72/x
  3. Step 3: Cross multiply
    20,954.04x = 31,435.47 × 6,161.72
  4. Step 4: Simplify right side
    20,954.04x = 193,696,566.53
  5. Step 5: Solve for x
    x = 193,696,566.53/20,954.04
  6. Step 6: Final answer
    x = 9,243.88

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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.