Home / 21,736.08-29,988.78-12,174.54

Finding the Fourth Proportional to 21,736.08, 29,988.78 and 12,174.54

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Solution

The fourth proportional to 21,736.08, 29,988.78 and 12,174.54 is: 16,796.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,736.08 : 29,988.78 = 12,174.54 : x
  2. Step 2: Convert to fraction form
    21,736.08/29,988.78 = 12,174.54/x
  3. Step 3: Cross multiply
    21,736.08x = 29,988.78 × 12,174.54
  4. Step 4: Simplify right side
    21,736.08x = 365,099,601.66
  5. Step 5: Solve for x
    x = 365,099,601.66/21,736.08
  6. Step 6: Final answer
    x = 16,796.94

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1.5x scale

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.