Home / 20,445.24-28,213.74-11,613.24

Finding the Fourth Proportional to 20,445.24, 28,213.74 and 11,613.24

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Solution

The fourth proportional to 20,445.24, 28,213.74 and 11,613.24 is: 16,025.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,445.24 : 28,213.74 = 11,613.24 : x
  2. Step 2: Convert to fraction form
    20,445.24/28,213.74 = 11,613.24/x
  3. Step 3: Cross multiply
    20,445.24x = 28,213.74 × 11,613.24
  4. Step 4: Simplify right side
    20,445.24x = 327,652,933.92
  5. Step 5: Solve for x
    x = 327,652,933.92/20,445.24
  6. Step 6: Final answer
    x = 16,025.88

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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.