Home / 20,839.53-28,771.97-18,597.56

Finding the Fourth Proportional to 20,839.53, 28,771.97 and 18,597.56

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Solution

The fourth proportional to 20,839.53, 28,771.97 and 18,597.56 is: 25,676.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,839.53 : 28,771.97 = 18,597.56 : x
  2. Step 2: Convert to fraction form
    20,839.53/28,771.97 = 18,597.56/x
  3. Step 3: Cross multiply
    20,839.53x = 28,771.97 × 18,597.56
  4. Step 4: Simplify right side
    20,839.53x = 535,088,201.55
  5. Step 5: Solve for x
    x = 535,088,201.55/20,839.53
  6. Step 6: Final answer
    x = 25,676.60

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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.