Home / 28,511.88-42,767.97-7,735.38

Finding the Fourth Proportional to 28,511.88, 42,767.97 and 7,735.38

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Solution

The fourth proportional to 28,511.88, 42,767.97 and 7,735.38 is: 11,603.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,511.88 : 42,767.97 = 7,735.38 : x
  2. Step 2: Convert to fraction form
    28,511.88/42,767.97 = 7,735.38/x
  3. Step 3: Cross multiply
    28,511.88x = 42,767.97 × 7,735.38
  4. Step 4: Simplify right side
    28,511.88x = 330,826,499.78
  5. Step 5: Solve for x
    x = 330,826,499.78/28,511.88
  6. Step 6: Final answer
    x = 11,603.11

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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.