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Finding the Third Proportional to 9,585.21 and 20,913.19

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Solution

The third proportional to 9,585.21 and 20,913.19 is: 45,628.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,585.21 : 20,913.19 = 20,913.19 : x
  2. Step 2: Convert to fraction form
    9,585.21/20,913.19 = 20,913.19/x
  3. Step 3: Cross multiply
    9,585.21x = 20,913.19 × 20,913.19
  4. Step 4: Simplify right side
    9,585.21x = 437,361,411.41
  5. Step 5: Solve for x
    x = 437,361,411.41/9,585.21
  6. Step 6: Final answer
    x = 45,628.77

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.