Home / 28,137.04-38,824.81-16,198.07

Finding the Fourth Proportional to 28,137.04, 38,824.81 and 16,198.07

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Solution

The fourth proportional to 28,137.04, 38,824.81 and 16,198.07 is: 22,350.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,137.04 : 38,824.81 = 16,198.07 : x
  2. Step 2: Convert to fraction form
    28,137.04/38,824.81 = 16,198.07/x
  3. Step 3: Cross multiply
    28,137.04x = 38,824.81 × 16,198.07
  4. Step 4: Simplify right side
    28,137.04x = 628,886,990.12
  5. Step 5: Solve for x
    x = 628,886,990.12/28,137.04
  6. Step 6: Final answer
    x = 22,350.86

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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.