Home / 28,718.88-43,078.38-8,997.94

Finding the Fourth Proportional to 28,718.88, 43,078.38 and 8,997.94

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Solution

The fourth proportional to 28,718.88, 43,078.38 and 8,997.94 is: 13,496.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,718.88 : 43,078.38 = 8,997.94 : x
  2. Step 2: Convert to fraction form
    28,718.88/43,078.38 = 8,997.94/x
  3. Step 3: Cross multiply
    28,718.88x = 43,078.38 × 8,997.94
  4. Step 4: Simplify right side
    28,718.88x = 387,616,678.54
  5. Step 5: Solve for x
    x = 387,616,678.54/28,718.88
  6. Step 6: Final answer
    x = 13,496.93

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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.