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Finding the Third Proportional to 14,428 and 19,390

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Solution

The third proportional to 14,428 and 19,390 is: 26,058.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,428 : 19,390 = 19,390 : x
  2. Step 2: Convert to fraction form
    14,428/19,390 = 19,390/x
  3. Step 3: Cross multiply
    14,428x = 19,390 × 19,390
  4. Step 4: Simplify right side
    14,428x = 375,972,100
  5. Step 5: Solve for x
    x = 375,972,100/14,428
  6. Step 6: Final answer
    x = 26,058.50

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Why These Related Problems?

These problems maintain the same ratio (1.34) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.