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Finding the Third Proportional to 15,420 and 24,828

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Solution

The third proportional to 15,420 and 24,828 is: 39,975.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,420 : 24,828 = 24,828 : x
  2. Step 2: Convert to fraction form
    15,420/24,828 = 24,828/x
  3. Step 3: Cross multiply
    15,420x = 24,828 × 24,828
  4. Step 4: Simplify right side
    15,420x = 616,429,584
  5. Step 5: Solve for x
    x = 616,429,584/15,420
  6. Step 6: Final answer
    x = 39,975.98

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.61) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.