Home / 20,468.31-28,249.71-11,853.24

Finding the Fourth Proportional to 20,468.31, 28,249.71 and 11,853.24

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Solution

The fourth proportional to 20,468.31, 28,249.71 and 11,853.24 is: 16,359.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,468.31 : 28,249.71 = 11,853.24 : x
  2. Step 2: Convert to fraction form
    20,468.31/28,249.71 = 11,853.24/x
  3. Step 3: Cross multiply
    20,468.31x = 28,249.71 × 11,853.24
  4. Step 4: Simplify right side
    20,468.31x = 334,850,592.56
  5. Step 5: Solve for x
    x = 334,850,592.56/20,468.31
  6. Step 6: Final answer
    x = 16,359.46

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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.