Home / 21,997.14-30,348.08-14,447.57

Finding the Fourth Proportional to 21,997.14, 30,348.08 and 14,447.57

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Solution

The fourth proportional to 21,997.14, 30,348.08 and 14,447.57 is: 19,932.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,997.14 : 30,348.08 = 14,447.57 : x
  2. Step 2: Convert to fraction form
    21,997.14/30,348.08 = 14,447.57/x
  3. Step 3: Cross multiply
    21,997.14x = 30,348.08 × 14,447.57
  4. Step 4: Simplify right side
    21,997.14x = 438,455,921.63
  5. Step 5: Solve for x
    x = 438,455,921.63/21,997.14
  6. Step 6: Final answer
    x = 19,932.41

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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.