Home / 21,997.37-30,348.42-14,447.79

Finding the Fourth Proportional to 21,997.37, 30,348.42 and 14,447.79

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Solution

The fourth proportional to 21,997.37, 30,348.42 and 14,447.79 is: 19,932.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,997.37 : 30,348.42 = 14,447.79 : x
  2. Step 2: Convert to fraction form
    21,997.37/30,348.42 = 14,447.79/x
  3. Step 3: Cross multiply
    21,997.37x = 30,348.42 × 14,447.79
  4. Step 4: Simplify right side
    21,997.37x = 438,467,526.75
  5. Step 5: Solve for x
    x = 438,467,526.75/21,997.37
  6. Step 6: Final answer
    x = 19,932.72

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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.