Home / 27,745.92-38,300.76-18,805.68

Finding the Fourth Proportional to 27,745.92, 38,300.76 and 18,805.68

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Solution

The fourth proportional to 27,745.92, 38,300.76 and 18,805.68 is: 25,959.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,745.92 : 38,300.76 = 18,805.68 : x
  2. Step 2: Convert to fraction form
    27,745.92/38,300.76 = 18,805.68/x
  3. Step 3: Cross multiply
    27,745.92x = 38,300.76 × 18,805.68
  4. Step 4: Simplify right side
    27,745.92x = 720,271,836.32
  5. Step 5: Solve for x
    x = 720,271,836.32/27,745.92
  6. Step 6: Final answer
    x = 25,959.56

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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.