Home / 19,285.92-28,921.32-6,803.28

Finding the Fourth Proportional to 19,285.92, 28,921.32 and 6,803.28

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Solution

The fourth proportional to 19,285.92, 28,921.32 and 6,803.28 is: 10,202.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,285.92 : 28,921.32 = 6,803.28 : x
  2. Step 2: Convert to fraction form
    19,285.92/28,921.32 = 6,803.28/x
  3. Step 3: Cross multiply
    19,285.92x = 28,921.32 × 6,803.28
  4. Step 4: Simplify right side
    19,285.92x = 196,759,837.93
  5. Step 5: Solve for x
    x = 196,759,837.93/19,285.92
  6. Step 6: Final answer
    x = 10,202.25

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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.