Home / 20,468.26-28,246.19-11,393.42

Finding the Fourth Proportional to 20,468.26, 28,246.19 and 11,393.42

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Solution

The fourth proportional to 20,468.26, 28,246.19 and 11,393.42 is: 15,722.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,468.26 : 28,246.19 = 11,393.42 : x
  2. Step 2: Convert to fraction form
    20,468.26/28,246.19 = 11,393.42/x
  3. Step 3: Cross multiply
    20,468.26x = 28,246.19 × 11,393.42
  4. Step 4: Simplify right side
    20,468.26x = 321,820,743.86
  5. Step 5: Solve for x
    x = 321,820,743.86/20,468.26
  6. Step 6: Final answer
    x = 15,722.92

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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.