Home / 20,893.43-31,341.36-8,413.35

Finding the Fourth Proportional to 20,893.43, 31,341.36 and 8,413.35

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Solution

The fourth proportional to 20,893.43, 31,341.36 and 8,413.35 is: 12,620.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,893.43 : 31,341.36 = 8,413.35 : x
  2. Step 2: Convert to fraction form
    20,893.43/31,341.36 = 8,413.35/x
  3. Step 3: Cross multiply
    20,893.43x = 31,341.36 × 8,413.35
  4. Step 4: Simplify right side
    20,893.43x = 263,685,831.16
  5. Step 5: Solve for x
    x = 263,685,831.16/20,893.43
  6. Step 6: Final answer
    x = 12,620.52

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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.