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Finding the Third Proportional to 21 and 44.50

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Solution

The third proportional to 21 and 44.50 is: 94.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    21 : 44.50 = 44.50 : x
  2. Step 2: Convert to fraction form
    21/44.50 = 44.50/x
  3. Step 3: Cross multiply
    21x = 44.50 × 44.50
  4. Step 4: Simplify right side
    21x = 1,980.25
  5. Step 5: Solve for x
    x = 1,980.25/21
  6. Step 6: Final answer
    x = 94.30

Related Problems

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.12) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.