Home / 18,439.20-27,615.60-14,032.80

Finding the Fourth Proportional to 18,439.20, 27,615.60 and 14,032.80

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Solution

The fourth proportional to 18,439.20, 27,615.60 and 14,032.80 is: 21,016.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,439.20 : 27,615.60 = 14,032.80 : x
  2. Step 2: Convert to fraction form
    18,439.20/27,615.60 = 14,032.80/x
  3. Step 3: Cross multiply
    18,439.20x = 27,615.60 × 14,032.80
  4. Step 4: Simplify right side
    18,439.20x = 387,524,191.68
  5. Step 5: Solve for x
    x = 387,524,191.68/18,439.20
  6. Step 6: Final answer
    x = 21,016.32

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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.