Home / 31,137.96-46,709.84-12,413.46

Finding the Fourth Proportional to 31,137.96, 46,709.84 and 12,413.46

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Solution

The fourth proportional to 31,137.96, 46,709.84 and 12,413.46 is: 18,621.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,137.96 : 46,709.84 = 12,413.46 : x
  2. Step 2: Convert to fraction form
    31,137.96/46,709.84 = 12,413.46/x
  3. Step 3: Cross multiply
    31,137.96x = 46,709.84 × 12,413.46
  4. Step 4: Simplify right side
    31,137.96x = 579,830,730.45
  5. Step 5: Solve for x
    x = 579,830,730.45/31,137.96
  6. Step 6: Final answer
    x = 18,621.35

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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.