Home / 28,552.92-42,769.62-18,112.92

Finding the Fourth Proportional to 28,552.92, 42,769.62 and 18,112.92

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Solution

The fourth proportional to 28,552.92, 42,769.62 and 18,112.92 is: 27,131.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,552.92 : 42,769.62 = 18,112.92 : x
  2. Step 2: Convert to fraction form
    28,552.92/42,769.62 = 18,112.92/x
  3. Step 3: Cross multiply
    28,552.92x = 42,769.62 × 18,112.92
  4. Step 4: Simplify right side
    28,552.92x = 774,682,705.49
  5. Step 5: Solve for x
    x = 774,682,705.49/28,552.92
  6. Step 6: Final answer
    x = 27,131.47

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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.