Home / 20,512.99-28,309.92-12,014.56

Finding the Fourth Proportional to 20,512.99, 28,309.92 and 12,014.56

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Solution

The fourth proportional to 20,512.99, 28,309.92 and 12,014.56 is: 16,581.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,512.99 : 28,309.92 = 12,014.56 : x
  2. Step 2: Convert to fraction form
    20,512.99/28,309.92 = 12,014.56/x
  3. Step 3: Cross multiply
    20,512.99x = 28,309.92 × 12,014.56
  4. Step 4: Simplify right side
    20,512.99x = 340,131,232.44
  5. Step 5: Solve for x
    x = 340,131,232.44/20,512.99
  6. Step 6: Final answer
    x = 16,581.26

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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.