Home / 37,413.12-51,631.19-20,418.45

Finding the Fourth Proportional to 37,413.12, 51,631.19 and 20,418.45

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Solution

The fourth proportional to 37,413.12, 51,631.19 and 20,418.45 is: 28,178.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,413.12 : 51,631.19 = 20,418.45 : x
  2. Step 2: Convert to fraction form
    37,413.12/51,631.19 = 20,418.45/x
  3. Step 3: Cross multiply
    37,413.12x = 51,631.19 × 20,418.45
  4. Step 4: Simplify right side
    37,413.12x = 1,054,228,942.74
  5. Step 5: Solve for x
    x = 1,054,228,942.74/37,413.12
  6. Step 6: Final answer
    x = 28,178.06

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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.