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Finding the Fourth Proportional to 35.60, 53.39 and 17.56

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Solution

The fourth proportional to 35.60, 53.39 and 17.56 is: 26.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    35.60 : 53.39 = 17.56 : x
  2. Step 2: Convert to fraction form
    35.60/53.39 = 17.56/x
  3. Step 3: Cross multiply
    35.60x = 53.39 × 17.56
  4. Step 4: Simplify right side
    35.60x = 937.53
  5. Step 5: Solve for x
    x = 937.53/35.60
  6. Step 6: Final answer
    x = 26.34

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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.