Home / 20,954.69-31,433.01-6,915.94

Finding the Fourth Proportional to 20,954.69, 31,433.01 and 6,915.94

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Solution

The fourth proportional to 20,954.69, 31,433.01 and 6,915.94 is: 10,374.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,954.69 : 31,433.01 = 6,915.94 : x
  2. Step 2: Convert to fraction form
    20,954.69/31,433.01 = 6,915.94/x
  3. Step 3: Cross multiply
    20,954.69x = 31,433.01 × 6,915.94
  4. Step 4: Simplify right side
    20,954.69x = 217,388,732.60
  5. Step 5: Solve for x
    x = 217,388,732.60/20,954.69
  6. Step 6: Final answer
    x = 10,374.23

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1.5x scale

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.