Home / 19,220.25-28,828.41-5,179.71

Finding the Fourth Proportional to 19,220.25, 28,828.41 and 5,179.71

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Solution

The fourth proportional to 19,220.25, 28,828.41 and 5,179.71 is: 7,769.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,220.25 : 28,828.41 = 5,179.71 : x
  2. Step 2: Convert to fraction form
    19,220.25/28,828.41 = 5,179.71/x
  3. Step 3: Cross multiply
    19,220.25x = 28,828.41 × 5,179.71
  4. Step 4: Simplify right side
    19,220.25x = 149,322,803.56
  5. Step 5: Solve for x
    x = 149,322,803.56/19,220.25
  6. Step 6: Final answer
    x = 7,769.04

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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.