Home / 20,181.66-27,841.12-14,216.61

Finding the Fourth Proportional to 20,181.66, 27,841.12 and 14,216.61

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Solution

The fourth proportional to 20,181.66, 27,841.12 and 14,216.61 is: 19,612.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,181.66 : 27,841.12 = 14,216.61 : x
  2. Step 2: Convert to fraction form
    20,181.66/27,841.12 = 14,216.61/x
  3. Step 3: Cross multiply
    20,181.66x = 27,841.12 × 14,216.61
  4. Step 4: Simplify right side
    20,181.66x = 395,806,413.87
  5. Step 5: Solve for x
    x = 395,806,413.87/20,181.66
  6. Step 6: Final answer
    x = 19,612.19

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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.