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Finding the Third Proportional to 10,258 and 15,931

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Solution

The third proportional to 10,258 and 15,931 is: 24,741.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,258 : 15,931 = 15,931 : x
  2. Step 2: Convert to fraction form
    10,258/15,931 = 15,931/x
  3. Step 3: Cross multiply
    10,258x = 15,931 × 15,931
  4. Step 4: Simplify right side
    10,258x = 253,796,761
  5. Step 5: Solve for x
    x = 253,796,761/10,258
  6. Step 6: Final answer
    x = 24,741.35

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.