Home / 21,893.45-30,185.33-14,327.79

Finding the Fourth Proportional to 21,893.45, 30,185.33 and 14,327.79

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Solution

The fourth proportional to 21,893.45, 30,185.33 and 14,327.79 is: 19,754.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,893.45 : 30,185.33 = 14,327.79 : x
  2. Step 2: Convert to fraction form
    21,893.45/30,185.33 = 14,327.79/x
  3. Step 3: Cross multiply
    21,893.45x = 30,185.33 × 14,327.79
  4. Step 4: Simplify right side
    21,893.45x = 432,488,997.68
  5. Step 5: Solve for x
    x = 432,488,997.68/21,893.45
  6. Step 6: Final answer
    x = 19,754.27

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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.