Home / 18,512.72-25,530.66-15,833.99

Finding the Fourth Proportional to 18,512.72, 25,530.66 and 15,833.99

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Solution

The fourth proportional to 18,512.72, 25,530.66 and 15,833.99 is: 21,836.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,512.72 : 25,530.66 = 15,833.99 : x
  2. Step 2: Convert to fraction form
    18,512.72/25,530.66 = 15,833.99/x
  3. Step 3: Cross multiply
    18,512.72x = 25,530.66 × 15,833.99
  4. Step 4: Simplify right side
    18,512.72x = 404,252,087.48
  5. Step 5: Solve for x
    x = 404,252,087.48/18,512.72
  6. Step 6: Final answer
    x = 21,836.46

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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.