Home / 20,839.41-28,771.80-18,597.43

Finding the Fourth Proportional to 20,839.41, 28,771.80 and 18,597.43

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Solution

The fourth proportional to 20,839.41, 28,771.80 and 18,597.43 is: 25,676.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,839.41 : 28,771.80 = 18,597.43 : x
  2. Step 2: Convert to fraction form
    20,839.41/28,771.80 = 18,597.43/x
  3. Step 3: Cross multiply
    20,839.41x = 28,771.80 × 18,597.43
  4. Step 4: Simplify right side
    20,839.41x = 535,081,443.49
  5. Step 5: Solve for x
    x = 535,081,443.49/20,839.41
  6. Step 6: Final answer
    x = 25,676.43

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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.