Home / 21,133.84-31,696.17-6,338.79

Finding the Fourth Proportional to 21,133.84, 31,696.17 and 6,338.79

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Solution

The fourth proportional to 21,133.84, 31,696.17 and 6,338.79 is: 9,506.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,133.84 : 31,696.17 = 6,338.79 : x
  2. Step 2: Convert to fraction form
    21,133.84/31,696.17 = 6,338.79/x
  3. Step 3: Cross multiply
    21,133.84x = 31,696.17 × 6,338.79
  4. Step 4: Simplify right side
    21,133.84x = 200,915,365.43
  5. Step 5: Solve for x
    x = 200,915,365.43/21,133.84
  6. Step 6: Final answer
    x = 9,506.81

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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.