Home / 18,820.44-28,232.73-8,285.94

Finding the Fourth Proportional to 18,820.44, 28,232.73 and 8,285.94

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Solution

The fourth proportional to 18,820.44, 28,232.73 and 8,285.94 is: 12,429.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,820.44 : 28,232.73 = 8,285.94 : x
  2. Step 2: Convert to fraction form
    18,820.44/28,232.73 = 8,285.94/x
  3. Step 3: Cross multiply
    18,820.44x = 28,232.73 × 8,285.94
  4. Step 4: Simplify right side
    18,820.44x = 233,934,706.82
  5. Step 5: Solve for x
    x = 233,934,706.82/18,820.44
  6. Step 6: Final answer
    x = 12,429.82

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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.