Home / 27,825.41-38,449.99-20,258.61

Finding the Fourth Proportional to 27,825.41, 38,449.99 and 20,258.61

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Solution

The fourth proportional to 27,825.41, 38,449.99 and 20,258.61 is: 27,993.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,825.41 : 38,449.99 = 20,258.61 : x
  2. Step 2: Convert to fraction form
    27,825.41/38,449.99 = 20,258.61/x
  3. Step 3: Cross multiply
    27,825.41x = 38,449.99 × 20,258.61
  4. Step 4: Simplify right side
    27,825.41x = 778,943,377.24
  5. Step 5: Solve for x
    x = 778,943,377.24/27,825.41
  6. Step 6: Final answer
    x = 27,993.96

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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.