Home / 28,824.54-39,786.72-16,891.72

Finding the Fourth Proportional to 28,824.54, 39,786.72 and 16,891.72

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Solution

The fourth proportional to 28,824.54, 39,786.72 and 16,891.72 is: 23,315.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,824.54 : 39,786.72 = 16,891.72 : x
  2. Step 2: Convert to fraction form
    28,824.54/39,786.72 = 16,891.72/x
  3. Step 3: Cross multiply
    28,824.54x = 39,786.72 × 16,891.72
  4. Step 4: Simplify right side
    28,824.54x = 672,066,133.96
  5. Step 5: Solve for x
    x = 672,066,133.96/28,824.54
  6. Step 6: Final answer
    x = 23,315.76

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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.