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Finding the Third Proportional to 19,120 and 28,053

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Solution

The third proportional to 19,120 and 28,053 is: 41,159.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,120 : 28,053 = 28,053 : x
  2. Step 2: Convert to fraction form
    19,120/28,053 = 28,053/x
  3. Step 3: Cross multiply
    19,120x = 28,053 × 28,053
  4. Step 4: Simplify right side
    19,120x = 786,970,809
  5. Step 5: Solve for x
    x = 786,970,809/19,120
  6. Step 6: Final answer
    x = 41,159.56

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Why These Related Problems?

These problems maintain the same ratio (1.47) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.