Home / 21,739.01-29,997.96-12,662.96

Finding the Fourth Proportional to 21,739.01, 29,997.96 and 12,662.96

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Solution

The fourth proportional to 21,739.01, 29,997.96 and 12,662.96 is: 17,473.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,739.01 : 29,997.96 = 12,662.96 : x
  2. Step 2: Convert to fraction form
    21,739.01/29,997.96 = 12,662.96/x
  3. Step 3: Cross multiply
    21,739.01x = 29,997.96 × 12,662.96
  4. Step 4: Simplify right side
    21,739.01x = 379,862,967.56
  5. Step 5: Solve for x
    x = 379,862,967.56/21,739.01
  6. Step 6: Final answer
    x = 17,473.79

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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.