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Finding the Fourth Proportional to 35,612.88, 49,144.80 and 19,696.80

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Solution

The fourth proportional to 35,612.88, 49,144.80 and 19,696.80 is: 27,181.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,612.88 : 49,144.80 = 19,696.80 : x
  2. Step 2: Convert to fraction form
    35,612.88/49,144.80 = 19,696.80/x
  3. Step 3: Cross multiply
    35,612.88x = 49,144.80 × 19,696.80
  4. Step 4: Simplify right side
    35,612.88x = 967,995,296.64
  5. Step 5: Solve for x
    x = 967,995,296.64/35,612.88
  6. Step 6: Final answer
    x = 27,181.05

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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.