Home / 26,455-39,687.72-8,929.84

Finding the Fourth Proportional to 26,455, 39,687.72 and 8,929.84

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Solution

The fourth proportional to 26,455, 39,687.72 and 8,929.84 is: 13,396.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,455 : 39,687.72 = 8,929.84 : x
  2. Step 2: Convert to fraction form
    26,455/39,687.72 = 8,929.84/x
  3. Step 3: Cross multiply
    26,455x = 39,687.72 × 8,929.84
  4. Step 4: Simplify right side
    26,455x = 354,404,989.56
  5. Step 5: Solve for x
    x = 354,404,989.56/26,455
  6. Step 6: Final answer
    x = 13,396.52

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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.