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Finding the Third Proportional to 21,639.23 and 34,236

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Solution

The third proportional to 21,639.23 and 34,236 is: 54,165.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,639.23 : 34,236 = 34,236 : x
  2. Step 2: Convert to fraction form
    21,639.23/34,236 = 34,236/x
  3. Step 3: Cross multiply
    21,639.23x = 34,236 × 34,236
  4. Step 4: Simplify right side
    21,639.23x = 1,172,103,696
  5. Step 5: Solve for x
    x = 1,172,103,696/21,639.23
  6. Step 6: Final answer
    x = 54,165.67

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Why These Related Problems?

These problems maintain the same ratio (1.58) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.