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Finding the Third Proportional to 15,336 and 20,810.25

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Solution

The third proportional to 15,336 and 20,810.25 is: 28,238.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,336 : 20,810.25 = 20,810.25 : x
  2. Step 2: Convert to fraction form
    15,336/20,810.25 = 20,810.25/x
  3. Step 3: Cross multiply
    15,336x = 20,810.25 × 20,810.25
  4. Step 4: Simplify right side
    15,336x = 433,066,505.06
  5. Step 5: Solve for x
    x = 433,066,505.06/15,336
  6. Step 6: Final answer
    x = 28,238.56

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.36) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.