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Finding the Third Proportional to 14,240 and 19,960

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Solution

The third proportional to 14,240 and 19,960 is: 27,977.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,240 : 19,960 = 19,960 : x
  2. Step 2: Convert to fraction form
    14,240/19,960 = 19,960/x
  3. Step 3: Cross multiply
    14,240x = 19,960 × 19,960
  4. Step 4: Simplify right side
    14,240x = 398,401,600
  5. Step 5: Solve for x
    x = 398,401,600/14,240
  6. Step 6: Final answer
    x = 27,977.64

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.