Home / 28,718.36-43,072.68-7,937

Finding the Fourth Proportional to 28,718.36, 43,072.68 and 7,937

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Solution

The fourth proportional to 28,718.36, 43,072.68 and 7,937 is: 11,904.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,718.36 : 43,072.68 = 7,937 : x
  2. Step 2: Convert to fraction form
    28,718.36/43,072.68 = 7,937/x
  3. Step 3: Cross multiply
    28,718.36x = 43,072.68 × 7,937
  4. Step 4: Simplify right side
    28,718.36x = 341,867,861.16
  5. Step 5: Solve for x
    x = 341,867,861.16/28,718.36
  6. Step 6: Final answer
    x = 11,904.16

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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.