Home / 20,517.28-28,297.74-14,852.86

Finding the Fourth Proportional to 20,517.28, 28,297.74 and 14,852.86

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Solution

The fourth proportional to 20,517.28, 28,297.74 and 14,852.86 is: 20,485.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,517.28 : 28,297.74 = 14,852.86 : x
  2. Step 2: Convert to fraction form
    20,517.28/28,297.74 = 14,852.86/x
  3. Step 3: Cross multiply
    20,517.28x = 28,297.74 × 14,852.86
  4. Step 4: Simplify right side
    20,517.28x = 420,302,370.54
  5. Step 5: Solve for x
    x = 420,302,370.54/20,517.28
  6. Step 6: Final answer
    x = 20,485.29

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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.