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Finding the Fourth Proportional to 22,454.86, 30,987.93 and 12,383.66

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Solution

The fourth proportional to 22,454.86, 30,987.93 and 12,383.66 is: 17,089.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,454.86 : 30,987.93 = 12,383.66 : x
  2. Step 2: Convert to fraction form
    22,454.86/30,987.93 = 12,383.66/x
  3. Step 3: Cross multiply
    22,454.86x = 30,987.93 × 12,383.66
  4. Step 4: Simplify right side
    22,454.86x = 383,743,958.26
  5. Step 5: Solve for x
    x = 383,743,958.26/22,454.86
  6. Step 6: Final answer
    x = 17,089.57

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.