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Finding the Third Proportional to 14,420 and 31,508

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Solution

The third proportional to 14,420 and 31,508 is: 68,845.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,420 : 31,508 = 31,508 : x
  2. Step 2: Convert to fraction form
    14,420/31,508 = 31,508/x
  3. Step 3: Cross multiply
    14,420x = 31,508 × 31,508
  4. Step 4: Simplify right side
    14,420x = 992,754,064
  5. Step 5: Solve for x
    x = 992,754,064/14,420
  6. Step 6: Final answer
    x = 68,845.64

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.