Home / 26,608.95-39,919.29-7,890.45

Finding the Fourth Proportional to 26,608.95, 39,919.29 and 7,890.45

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Solution

The fourth proportional to 26,608.95, 39,919.29 and 7,890.45 is: 11,837.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,608.95 : 39,919.29 = 7,890.45 : x
  2. Step 2: Convert to fraction form
    26,608.95/39,919.29 = 7,890.45/x
  3. Step 3: Cross multiply
    26,608.95x = 39,919.29 × 7,890.45
  4. Step 4: Simplify right side
    26,608.95x = 314,981,161.78
  5. Step 5: Solve for x
    x = 314,981,161.78/26,608.95
  6. Step 6: Final answer
    x = 11,837.41

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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.