Home / 21,909.44-30,235.03-11,837.88

Finding the Fourth Proportional to 21,909.44, 30,235.03 and 11,837.88

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Solution

The fourth proportional to 21,909.44, 30,235.03 and 11,837.88 is: 16,336.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,909.44 : 30,235.03 = 11,837.88 : x
  2. Step 2: Convert to fraction form
    21,909.44/30,235.03 = 11,837.88/x
  3. Step 3: Cross multiply
    21,909.44x = 30,235.03 × 11,837.88
  4. Step 4: Simplify right side
    21,909.44x = 357,918,673.33
  5. Step 5: Solve for x
    x = 357,918,673.33/21,909.44
  6. Step 6: Final answer
    x = 16,336.28

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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.