Home / 20,338.32-28,067.32-14,380.48

Finding the Fourth Proportional to 20,338.32, 28,067.32 and 14,380.48

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Solution

The fourth proportional to 20,338.32, 28,067.32 and 14,380.48 is: 19,845.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,338.32 : 28,067.32 = 14,380.48 : x
  2. Step 2: Convert to fraction form
    20,338.32/28,067.32 = 14,380.48/x
  3. Step 3: Cross multiply
    20,338.32x = 28,067.32 × 14,380.48
  4. Step 4: Simplify right side
    20,338.32x = 403,621,533.91
  5. Step 5: Solve for x
    x = 403,621,533.91/20,338.32
  6. Step 6: Final answer
    x = 19,845.37

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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.