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Finding the Third Proportional to 10,215 and 20,848.50

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Solution

The third proportional to 10,215 and 20,848.50 is: 42,551.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,215 : 20,848.50 = 20,848.50 : x
  2. Step 2: Convert to fraction form
    10,215/20,848.50 = 20,848.50/x
  3. Step 3: Cross multiply
    10,215x = 20,848.50 × 20,848.50
  4. Step 4: Simplify right side
    10,215x = 434,659,952.25
  5. Step 5: Solve for x
    x = 434,659,952.25/10,215
  6. Step 6: Final answer
    x = 42,551.15

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.04) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.