Home / 21,670.96-29,905.50-12,110.94

Finding the Fourth Proportional to 21,670.96, 29,905.50 and 12,110.94

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Solution

The fourth proportional to 21,670.96, 29,905.50 and 12,110.94 is: 16,712.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,670.96 : 29,905.50 = 12,110.94 : x
  2. Step 2: Convert to fraction form
    21,670.96/29,905.50 = 12,110.94/x
  3. Step 3: Cross multiply
    21,670.96x = 29,905.50 × 12,110.94
  4. Step 4: Simplify right side
    21,670.96x = 362,183,716.17
  5. Step 5: Solve for x
    x = 362,183,716.17/21,670.96
  6. Step 6: Final answer
    x = 16,712.86

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Why These Related Problems?

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