Home / 21,956.74-30,297.04-13,338.44

Finding the Fourth Proportional to 21,956.74, 30,297.04 and 13,338.44

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Solution

The fourth proportional to 21,956.74, 30,297.04 and 13,338.44 is: 18,405.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,956.74 : 30,297.04 = 13,338.44 : x
  2. Step 2: Convert to fraction form
    21,956.74/30,297.04 = 13,338.44/x
  3. Step 3: Cross multiply
    21,956.74x = 30,297.04 × 13,338.44
  4. Step 4: Simplify right side
    21,956.74x = 404,115,250.22
  5. Step 5: Solve for x
    x = 404,115,250.22/21,956.74
  6. Step 6: Final answer
    x = 18,405.07

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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.