Home / 18,419.20-27,628.99-14,744.78

Finding the Fourth Proportional to 18,419.20, 27,628.99 and 14,744.78

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Solution

The fourth proportional to 18,419.20, 27,628.99 and 14,744.78 is: 22,117.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,419.20 : 27,628.99 = 14,744.78 : x
  2. Step 2: Convert to fraction form
    18,419.20/27,628.99 = 14,744.78/x
  3. Step 3: Cross multiply
    18,419.20x = 27,628.99 × 14,744.78
  4. Step 4: Simplify right side
    18,419.20x = 407,383,305.45
  5. Step 5: Solve for x
    x = 407,383,305.45/18,419.20
  6. Step 6: Final answer
    x = 22,117.32

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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.