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Finding the Third Proportional to 15,688.50 and 22,365

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Solution

The third proportional to 15,688.50 and 22,365 is: 31,882.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,688.50 : 22,365 = 22,365 : x
  2. Step 2: Convert to fraction form
    15,688.50/22,365 = 22,365/x
  3. Step 3: Cross multiply
    15,688.50x = 22,365 × 22,365
  4. Step 4: Simplify right side
    15,688.50x = 500,193,225
  5. Step 5: Solve for x
    x = 500,193,225/15,688.50
  6. Step 6: Final answer
    x = 31,882.79

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Why These Related Problems?

These problems maintain the same ratio (1.43) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.