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Finding the Fourth Proportional to 35,990.94, 49,657.41 and 20,880.60

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Solution

The fourth proportional to 35,990.94, 49,657.41 and 20,880.60 is: 28,809.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,990.94 : 49,657.41 = 20,880.60 : x
  2. Step 2: Convert to fraction form
    35,990.94/49,657.41 = 20,880.60/x
  3. Step 3: Cross multiply
    35,990.94x = 49,657.41 × 20,880.60
  4. Step 4: Simplify right side
    35,990.94x = 1,036,876,515.25
  5. Step 5: Solve for x
    x = 1,036,876,515.25/35,990.94
  6. Step 6: Final answer
    x = 28,809.38

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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.