Home / 18,992.32-28,485.83-4,951.22

Finding the Fourth Proportional to 18,992.32, 28,485.83 and 4,951.22

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Solution

The fourth proportional to 18,992.32, 28,485.83 and 4,951.22 is: 7,426.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,992.32 : 28,485.83 = 4,951.22 : x
  2. Step 2: Convert to fraction form
    18,992.32/28,485.83 = 4,951.22/x
  3. Step 3: Cross multiply
    18,992.32x = 28,485.83 × 4,951.22
  4. Step 4: Simplify right side
    18,992.32x = 141,039,481.16
  5. Step 5: Solve for x
    x = 141,039,481.16/18,992.32
  6. Step 6: Final answer
    x = 7,426.13

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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.