Home / 21,723.32-29,974.38-13,342.52

Finding the Fourth Proportional to 21,723.32, 29,974.38 and 13,342.52

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Solution

The fourth proportional to 21,723.32, 29,974.38 and 13,342.52 is: 18,410.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,723.32 : 29,974.38 = 13,342.52 : x
  2. Step 2: Convert to fraction form
    21,723.32/29,974.38 = 13,342.52/x
  3. Step 3: Cross multiply
    21,723.32x = 29,974.38 × 13,342.52
  4. Step 4: Simplify right side
    21,723.32x = 399,933,764.64
  5. Step 5: Solve for x
    x = 399,933,764.64/21,723.32
  6. Step 6: Final answer
    x = 18,410.34

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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.