Home / 18,941.88-26,126.28-16,419.60

Finding the Fourth Proportional to 18,941.88, 26,126.28 and 16,419.60

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Solution

The fourth proportional to 18,941.88, 26,126.28 and 16,419.60 is: 22,647.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,941.88 : 26,126.28 = 16,419.60 : x
  2. Step 2: Convert to fraction form
    18,941.88/26,126.28 = 16,419.60/x
  3. Step 3: Cross multiply
    18,941.88x = 26,126.28 × 16,419.60
  4. Step 4: Simplify right side
    18,941.88x = 428,983,067.09
  5. Step 5: Solve for x
    x = 428,983,067.09/18,941.88
  6. Step 6: Final answer
    x = 22,647.33

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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.