Home / 27,448.67-37,879.45-15,511.91

Finding the Fourth Proportional to 27,448.67, 37,879.45 and 15,511.91

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Solution

The fourth proportional to 27,448.67, 37,879.45 and 15,511.91 is: 21,406.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,448.67 : 37,879.45 = 15,511.91 : x
  2. Step 2: Convert to fraction form
    27,448.67/37,879.45 = 15,511.91/x
  3. Step 3: Cross multiply
    27,448.67x = 37,879.45 × 15,511.91
  4. Step 4: Simplify right side
    27,448.67x = 587,582,391.07
  5. Step 5: Solve for x
    x = 587,582,391.07/27,448.67
  6. Step 6: Final answer
    x = 21,406.59

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.