Home / 39,429.38-54,413.78-22,436.09

Finding the Fourth Proportional to 39,429.38, 54,413.78 and 22,436.09

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Solution

The fourth proportional to 39,429.38, 54,413.78 and 22,436.09 is: 30,962.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,429.38 : 54,413.78 = 22,436.09 : x
  2. Step 2: Convert to fraction form
    39,429.38/54,413.78 = 22,436.09/x
  3. Step 3: Cross multiply
    39,429.38x = 54,413.78 × 22,436.09
  4. Step 4: Simplify right side
    39,429.38x = 1,220,832,285.12
  5. Step 5: Solve for x
    x = 1,220,832,285.12/39,429.38
  6. Step 6: Final answer
    x = 30,962.50

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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.