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Finding the Third Proportional to 19 and 29.50

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Solution

The third proportional to 19 and 29.50 is: 45.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    19 : 29.50 = 29.50 : x
  2. Step 2: Convert to fraction form
    19/29.50 = 29.50/x
  3. Step 3: Cross multiply
    19x = 29.50 × 29.50
  4. Step 4: Simplify right side
    19x = 870.25
  5. Step 5: Solve for x
    x = 870.25/19
  6. Step 6: Final answer
    x = 45.80

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.