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Finding the Third Proportional to 20,283 and 31,258.50

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Solution

The third proportional to 20,283 and 31,258.50 is: 48,173.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,283 : 31,258.50 = 31,258.50 : x
  2. Step 2: Convert to fraction form
    20,283/31,258.50 = 31,258.50/x
  3. Step 3: Cross multiply
    20,283x = 31,258.50 × 31,258.50
  4. Step 4: Simplify right side
    20,283x = 977,093,822.25
  5. Step 5: Solve for x
    x = 977,093,822.25/20,283
  6. Step 6: Final answer
    x = 48,173.04

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Why These Related Problems?

These problems maintain the same ratio (1.54) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.