Home / 20,844.73-28,765.73-11,413.30

Finding the Fourth Proportional to 20,844.73, 28,765.73 and 11,413.30

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Solution

The fourth proportional to 20,844.73, 28,765.73 and 11,413.30 is: 15,750.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,844.73 : 28,765.73 = 11,413.30 : x
  2. Step 2: Convert to fraction form
    20,844.73/28,765.73 = 11,413.30/x
  3. Step 3: Cross multiply
    20,844.73x = 28,765.73 × 11,413.30
  4. Step 4: Simplify right side
    20,844.73x = 328,311,762.38
  5. Step 5: Solve for x
    x = 328,311,762.38/20,844.73
  6. Step 6: Final answer
    x = 15,750.35

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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.