Home / 14,215.36-21,320.16-3,824.68

Finding the Fourth Proportional to 14,215.36, 21,320.16 and 3,824.68

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Solution

The fourth proportional to 14,215.36, 21,320.16 and 3,824.68 is: 5,736.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,215.36 : 21,320.16 = 3,824.68 : x
  2. Step 2: Convert to fraction form
    14,215.36/21,320.16 = 3,824.68/x
  3. Step 3: Cross multiply
    14,215.36x = 21,320.16 × 3,824.68
  4. Step 4: Simplify right side
    14,215.36x = 81,542,789.55
  5. Step 5: Solve for x
    x = 81,542,789.55/14,215.36
  6. Step 6: Final answer
    x = 5,736.25

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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.