Home / 21,964.80-30,311.44-11,893.32

Finding the Fourth Proportional to 21,964.80, 30,311.44 and 11,893.32

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Solution

The fourth proportional to 21,964.80, 30,311.44 and 11,893.32 is: 16,412.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,964.80 : 30,311.44 = 11,893.32 : x
  2. Step 2: Convert to fraction form
    21,964.80/30,311.44 = 11,893.32/x
  3. Step 3: Cross multiply
    21,964.80x = 30,311.44 × 11,893.32
  4. Step 4: Simplify right side
    21,964.80x = 360,503,655.58
  5. Step 5: Solve for x
    x = 360,503,655.58/21,964.80
  6. Step 6: Final answer
    x = 16,412.79

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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.