Home / 20,559.35-30,839.20-17,578.49

Finding the Fourth Proportional to 20,559.35, 30,839.20 and 17,578.49

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Solution

The fourth proportional to 20,559.35, 30,839.20 and 17,578.49 is: 26,367.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,559.35 : 30,839.20 = 17,578.49 : x
  2. Step 2: Convert to fraction form
    20,559.35/30,839.20 = 17,578.49/x
  3. Step 3: Cross multiply
    20,559.35x = 30,839.20 × 17,578.49
  4. Step 4: Simplify right side
    20,559.35x = 542,106,370.67
  5. Step 5: Solve for x
    x = 542,106,370.67/20,559.35
  6. Step 6: Final answer
    x = 26,367.87

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.