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Finding the Third Proportional to 15,289.03 and 21,530.53

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Solution

The third proportional to 15,289.03 and 21,530.53 is: 30,320.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,289.03 : 21,530.53 = 21,530.53 : x
  2. Step 2: Convert to fraction form
    15,289.03/21,530.53 = 21,530.53/x
  3. Step 3: Cross multiply
    15,289.03x = 21,530.53 × 21,530.53
  4. Step 4: Simplify right side
    15,289.03x = 463,563,775.91
  5. Step 5: Solve for x
    x = 463,563,775.91/15,289.03
  6. Step 6: Final answer
    x = 30,320.02

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Why These Related Problems?

These problems maintain the same ratio (1.41) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.