Home / 38,936.61-58,413.06-12,639.24

Finding the Fourth Proportional to 38,936.61, 58,413.06 and 12,639.24

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Solution

The fourth proportional to 38,936.61, 58,413.06 and 12,639.24 is: 18,961.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,936.61 : 58,413.06 = 12,639.24 : x
  2. Step 2: Convert to fraction form
    38,936.61/58,413.06 = 12,639.24/x
  3. Step 3: Cross multiply
    38,936.61x = 58,413.06 × 12,639.24
  4. Step 4: Simplify right side
    38,936.61x = 738,296,684.47
  5. Step 5: Solve for x
    x = 738,296,684.47/38,936.61
  6. Step 6: Final answer
    x = 18,961.50

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.