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Finding the Third Proportional to 4,428 and 10,530

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Solution

The third proportional to 4,428 and 10,530 is: 25,040.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,428 : 10,530 = 10,530 : x
  2. Step 2: Convert to fraction form
    4,428/10,530 = 10,530/x
  3. Step 3: Cross multiply
    4,428x = 10,530 × 10,530
  4. Step 4: Simplify right side
    4,428x = 110,880,900
  5. Step 5: Solve for x
    x = 110,880,900/4,428
  6. Step 6: Final answer
    x = 25,040.85

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Why These Related Problems?

These problems maintain the same ratio (2.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.