Home / 27,628.26-38,125.68-15,689.97

Finding the Fourth Proportional to 27,628.26, 38,125.68 and 15,689.97

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Solution

The fourth proportional to 27,628.26, 38,125.68 and 15,689.97 is: 21,651.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,628.26 : 38,125.68 = 15,689.97 : x
  2. Step 2: Convert to fraction form
    27,628.26/38,125.68 = 15,689.97/x
  3. Step 3: Cross multiply
    27,628.26x = 38,125.68 × 15,689.97
  4. Step 4: Simplify right side
    27,628.26x = 598,190,775.43
  5. Step 5: Solve for x
    x = 598,190,775.43/27,628.26
  6. Step 6: Final answer
    x = 21,651.41

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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.