Home / 28,260.24-38,990.12-16,322

Finding the Fourth Proportional to 28,260.24, 38,990.12 and 16,322

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Solution

The fourth proportional to 28,260.24, 38,990.12 and 16,322 is: 22,519.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,260.24 : 38,990.12 = 16,322 : x
  2. Step 2: Convert to fraction form
    28,260.24/38,990.12 = 16,322/x
  3. Step 3: Cross multiply
    28,260.24x = 38,990.12 × 16,322
  4. Step 4: Simplify right side
    28,260.24x = 636,396,738.64
  5. Step 5: Solve for x
    x = 636,396,738.64/28,260.24
  6. Step 6: Final answer
    x = 22,519.16

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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.