Home / 33,639.60-46,413.18-21,698.40

Finding the Fourth Proportional to 33,639.60, 46,413.18 and 21,698.40

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Solution

The fourth proportional to 33,639.60, 46,413.18 and 21,698.40 is: 29,937.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,639.60 : 46,413.18 = 21,698.40 : x
  2. Step 2: Convert to fraction form
    33,639.60/46,413.18 = 21,698.40/x
  3. Step 3: Cross multiply
    33,639.60x = 46,413.18 × 21,698.40
  4. Step 4: Simplify right side
    33,639.60x = 1,007,091,744.91
  5. Step 5: Solve for x
    x = 1,007,091,744.91/33,639.60
  6. Step 6: Final answer
    x = 29,937.68

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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.