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Finding the Fourth Proportional to 25,648.50, 38,475.81 and 7,876.82

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Solution

The fourth proportional to 25,648.50, 38,475.81 and 7,876.82 is: 11,816.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,648.50 : 38,475.81 = 7,876.82 : x
  2. Step 2: Convert to fraction form
    25,648.50/38,475.81 = 7,876.82/x
  3. Step 3: Cross multiply
    25,648.50x = 38,475.81 × 7,876.82
  4. Step 4: Simplify right side
    25,648.50x = 303,066,837.35
  5. Step 5: Solve for x
    x = 303,066,837.35/25,648.50
  6. Step 6: Final answer
    x = 11,816.16

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.