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Finding the Third Proportional to 20,916.98 and 29,816.86

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Solution

The third proportional to 20,916.98 and 29,816.86 is: 42,503.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,916.98 : 29,816.86 = 29,816.86 : x
  2. Step 2: Convert to fraction form
    20,916.98/29,816.86 = 29,816.86/x
  3. Step 3: Cross multiply
    20,916.98x = 29,816.86 × 29,816.86
  4. Step 4: Simplify right side
    20,916.98x = 889,045,102.99
  5. Step 5: Solve for x
    x = 889,045,102.99/20,916.98
  6. Step 6: Final answer
    x = 42,503.50

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Why These Related Problems?

These problems maintain the same ratio (1.43) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.