Home / 21,671.52-32,481.36-13,338.24

Finding the Fourth Proportional to 21,671.52, 32,481.36 and 13,338.24

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Solution

The fourth proportional to 21,671.52, 32,481.36 and 13,338.24 is: 19,991.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,671.52 : 32,481.36 = 13,338.24 : x
  2. Step 2: Convert to fraction form
    21,671.52/32,481.36 = 13,338.24/x
  3. Step 3: Cross multiply
    21,671.52x = 32,481.36 × 13,338.24
  4. Step 4: Simplify right side
    21,671.52x = 433,244,175.21
  5. Step 5: Solve for x
    x = 433,244,175.21/21,671.52
  6. Step 6: Final answer
    x = 19,991.41

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.