Home / 21,493.84-29,662.44-13,533.04

Finding the Fourth Proportional to 21,493.84, 29,662.44 and 13,533.04

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Solution

The fourth proportional to 21,493.84, 29,662.44 and 13,533.04 is: 18,676.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,493.84 : 29,662.44 = 13,533.04 : x
  2. Step 2: Convert to fraction form
    21,493.84/29,662.44 = 13,533.04/x
  3. Step 3: Cross multiply
    21,493.84x = 29,662.44 × 13,533.04
  4. Step 4: Simplify right side
    21,493.84x = 401,422,987.02
  5. Step 5: Solve for x
    x = 401,422,987.02/21,493.84
  6. Step 6: Final answer
    x = 18,676.19

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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.