Home / 28,682.68-43,026.18-7,906

Finding the Fourth Proportional to 28,682.68, 43,026.18 and 7,906

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Solution

The fourth proportional to 28,682.68, 43,026.18 and 7,906 is: 11,859.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,682.68 : 43,026.18 = 7,906 : x
  2. Step 2: Convert to fraction form
    28,682.68/43,026.18 = 7,906/x
  3. Step 3: Cross multiply
    28,682.68x = 43,026.18 × 7,906
  4. Step 4: Simplify right side
    28,682.68x = 340,164,979.08
  5. Step 5: Solve for x
    x = 340,164,979.08/28,682.68
  6. Step 6: Final answer
    x = 11,859.60

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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.