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Finding the Fourth Proportional to 19.54, 27 and 17.54

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Solution

The fourth proportional to 19.54, 27 and 17.54 is: 24.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    19.54 : 27 = 17.54 : x
  2. Step 2: Convert to fraction form
    19.54/27 = 17.54/x
  3. Step 3: Cross multiply
    19.54x = 27 × 17.54
  4. Step 4: Simplify right side
    19.54x = 473.58
  5. Step 5: Solve for x
    x = 473.58/19.54
  6. Step 6: Final answer
    x = 24.24

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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.