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Finding the Third Proportional to 14,328 and 21,428

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Solution

The third proportional to 14,328 and 21,428 is: 32,046.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,328 : 21,428 = 21,428 : x
  2. Step 2: Convert to fraction form
    14,328/21,428 = 21,428/x
  3. Step 3: Cross multiply
    14,328x = 21,428 × 21,428
  4. Step 4: Simplify right side
    14,328x = 459,159,184
  5. Step 5: Solve for x
    x = 459,159,184/14,328
  6. Step 6: Final answer
    x = 32,046.29

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.