Home / 19,865.20-27,413.52-10,790.44

Finding the Fourth Proportional to 19,865.20, 27,413.52 and 10,790.44

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Solution

The fourth proportional to 19,865.20, 27,413.52 and 10,790.44 is: 14,890.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,865.20 : 27,413.52 = 10,790.44 : x
  2. Step 2: Convert to fraction form
    19,865.20/27,413.52 = 10,790.44/x
  3. Step 3: Cross multiply
    19,865.20x = 27,413.52 × 10,790.44
  4. Step 4: Simplify right side
    19,865.20x = 295,803,942.75
  5. Step 5: Solve for x
    x = 295,803,942.75/19,865.20
  6. Step 6: Final answer
    x = 14,890.56

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.