Home / 19,928.28-29,896.36-5,696.88

Finding the Fourth Proportional to 19,928.28, 29,896.36 and 5,696.88

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Solution

The fourth proportional to 19,928.28, 29,896.36 and 5,696.88 is: 8,546.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,928.28 : 29,896.36 = 5,696.88 : x
  2. Step 2: Convert to fraction form
    19,928.28/29,896.36 = 5,696.88/x
  3. Step 3: Cross multiply
    19,928.28x = 29,896.36 × 5,696.88
  4. Step 4: Simplify right side
    19,928.28x = 170,315,975.36
  5. Step 5: Solve for x
    x = 170,315,975.36/19,928.28
  6. Step 6: Final answer
    x = 8,546.45

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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.