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Finding the Third Proportional to 14,299.88 and 20,428.88

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Solution

The third proportional to 14,299.88 and 20,428.88 is: 29,184.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,299.88 : 20,428.88 = 20,428.88 : x
  2. Step 2: Convert to fraction form
    14,299.88/20,428.88 = 20,428.88/x
  3. Step 3: Cross multiply
    14,299.88x = 20,428.88 × 20,428.88
  4. Step 4: Simplify right side
    14,299.88x = 417,338,933.77
  5. Step 5: Solve for x
    x = 417,338,933.77/14,299.88
  6. Step 6: Final answer
    x = 29,184.80

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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.