Home / 39,413.17-54,385.39-22,419.57

Finding the Fourth Proportional to 39,413.17, 54,385.39 and 22,419.57

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Solution

The fourth proportional to 39,413.17, 54,385.39 and 22,419.57 is: 30,936.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,413.17 : 54,385.39 = 22,419.57 : x
  2. Step 2: Convert to fraction form
    39,413.17/54,385.39 = 22,419.57/x
  3. Step 3: Cross multiply
    39,413.17x = 54,385.39 × 22,419.57
  4. Step 4: Simplify right side
    39,413.17x = 1,219,297,058.08
  5. Step 5: Solve for x
    x = 1,219,297,058.08/39,413.17
  6. Step 6: Final answer
    x = 30,936.28

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Double scale
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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.