Home / 21,240.44-29,284.26-13,673.24

Finding the Fourth Proportional to 21,240.44, 29,284.26 and 13,673.24

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Solution

The fourth proportional to 21,240.44, 29,284.26 and 13,673.24 is: 18,851.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,240.44 : 29,284.26 = 13,673.24 : x
  2. Step 2: Convert to fraction form
    21,240.44/29,284.26 = 13,673.24/x
  3. Step 3: Cross multiply
    21,240.44x = 29,284.26 × 13,673.24
  4. Step 4: Simplify right side
    21,240.44x = 400,410,715.20
  5. Step 5: Solve for x
    x = 400,410,715.20/21,240.44
  6. Step 6: Final answer
    x = 18,851.34

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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.