Home / 14,219.43-21,326.58-3,828.75

Finding the Fourth Proportional to 14,219.43, 21,326.58 and 3,828.75

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Solution

The fourth proportional to 14,219.43, 21,326.58 and 3,828.75 is: 5,742.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,219.43 : 21,326.58 = 3,828.75 : x
  2. Step 2: Convert to fraction form
    14,219.43/21,326.58 = 3,828.75/x
  3. Step 3: Cross multiply
    14,219.43x = 21,326.58 × 3,828.75
  4. Step 4: Simplify right side
    14,219.43x = 81,654,143.18
  5. Step 5: Solve for x
    x = 81,654,143.18/14,219.43
  6. Step 6: Final answer
    x = 5,742.43

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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.