Home / 26,640.92-39,930.28-20,045.92

Finding the Fourth Proportional to 26,640.92, 39,930.28 and 20,045.92

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Solution

The fourth proportional to 26,640.92, 39,930.28 and 20,045.92 is: 30,045.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,640.92 : 39,930.28 = 20,045.92 : x
  2. Step 2: Convert to fraction form
    26,640.92/39,930.28 = 20,045.92/x
  3. Step 3: Cross multiply
    26,640.92x = 39,930.28 × 20,045.92
  4. Step 4: Simplify right side
    26,640.92x = 800,439,198.46
  5. Step 5: Solve for x
    x = 800,439,198.46/26,640.92
  6. Step 6: Final answer
    x = 30,045.48

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1.5x scale

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.