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Finding the Third Proportional to 15,309 and 27,117.28

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Solution

The third proportional to 15,309 and 27,117.28 is: 48,033.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,309 : 27,117.28 = 27,117.28 : x
  2. Step 2: Convert to fraction form
    15,309/27,117.28 = 27,117.28/x
  3. Step 3: Cross multiply
    15,309x = 27,117.28 × 27,117.28
  4. Step 4: Simplify right side
    15,309x = 735,346,942.39
  5. Step 5: Solve for x
    x = 735,346,942.39/15,309
  6. Step 6: Final answer
    x = 48,033.64

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.77) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.