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Finding the Fourth Proportional to 35.63, 53.21 and 33.50

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Solution

The fourth proportional to 35.63, 53.21 and 33.50 is: 50.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    35.63 : 53.21 = 33.50 : x
  2. Step 2: Convert to fraction form
    35.63/53.21 = 33.50/x
  3. Step 3: Cross multiply
    35.63x = 53.21 × 33.50
  4. Step 4: Simplify right side
    35.63x = 1,782.54
  5. Step 5: Solve for x
    x = 1,782.54/35.63
  6. Step 6: Final answer
    x = 50.03

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.