Home / 21,485.56-29,650.39-11,926.06

Finding the Fourth Proportional to 21,485.56, 29,650.39 and 11,926.06

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Solution

The fourth proportional to 21,485.56, 29,650.39 and 11,926.06 is: 16,458.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,485.56 : 29,650.39 = 11,926.06 : x
  2. Step 2: Convert to fraction form
    21,485.56/29,650.39 = 11,926.06/x
  3. Step 3: Cross multiply
    21,485.56x = 29,650.39 × 11,926.06
  4. Step 4: Simplify right side
    21,485.56x = 353,612,485.01
  5. Step 5: Solve for x
    x = 353,612,485.01/21,485.56
  6. Step 6: Final answer
    x = 16,458.14

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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.