Home / 19,450.78-28,980.32-18,177.73

Finding the Fourth Proportional to 19,450.78, 28,980.32 and 18,177.73

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Solution

The fourth proportional to 19,450.78, 28,980.32 and 18,177.73 is: 27,083.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,450.78 : 28,980.32 = 18,177.73 : x
  2. Step 2: Convert to fraction form
    19,450.78/28,980.32 = 18,177.73/x
  3. Step 3: Cross multiply
    19,450.78x = 28,980.32 × 18,177.73
  4. Step 4: Simplify right side
    19,450.78x = 526,796,432.27
  5. Step 5: Solve for x
    x = 526,796,432.27/19,450.78
  6. Step 6: Final answer
    x = 27,083.56

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.