Home / 21,231,987.75-31,807,408.32-17,795,723.54

Finding the Fourth Proportional to 21,231,987.75, 31,807,408.32 and 17,795,723.54

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Solution

The fourth proportional to 21,231,987.75, 31,807,408.32 and 17,795,723.54 is: 26,659,578.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,231,987.75 : 31,807,408.32 = 17,795,723.54 : x
  2. Step 2: Convert to fraction form
    21,231,987.75/31,807,408.32 = 17,795,723.54/x
  3. Step 3: Cross multiply
    21,231,987.75x = 31,807,408.32 × 17,795,723.54
  4. Step 4: Simplify right side
    21,231,987.75x = 566,035,844,827,578.88
  5. Step 5: Solve for x
    x = 566,035,844,827,578.88/21,231,987.75
  6. Step 6: Final answer
    x = 26,659,578.53

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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.