Home / 39,413.38-54,386.01-22,651.78

Finding the Fourth Proportional to 39,413.38, 54,386.01 and 22,651.78

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Solution

The fourth proportional to 39,413.38, 54,386.01 and 22,651.78 is: 31,256.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,413.38 : 54,386.01 = 22,651.78 : x
  2. Step 2: Convert to fraction form
    39,413.38/54,386.01 = 22,651.78/x
  3. Step 3: Cross multiply
    39,413.38x = 54,386.01 × 22,651.78
  4. Step 4: Simplify right side
    39,413.38x = 1,231,939,933.60
  5. Step 5: Solve for x
    x = 1,231,939,933.60/39,413.38
  6. Step 6: Final answer
    x = 31,256.90

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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.