Home / 20,200.23-30,327.20-17,257.59

Finding the Fourth Proportional to 20,200.23, 30,327.20 and 17,257.59

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Solution

The fourth proportional to 20,200.23, 30,327.20 and 17,257.59 is: 25,909.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,200.23 : 30,327.20 = 17,257.59 : x
  2. Step 2: Convert to fraction form
    20,200.23/30,327.20 = 17,257.59/x
  3. Step 3: Cross multiply
    20,200.23x = 30,327.20 × 17,257.59
  4. Step 4: Simplify right side
    20,200.23x = 523,374,297.16
  5. Step 5: Solve for x
    x = 523,374,297.16/20,200.23
  6. Step 6: Final answer
    x = 25,909.32

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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.