Home / 28,413.68-42,618.97-8,692.23

Finding the Fourth Proportional to 28,413.68, 42,618.97 and 8,692.23

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Solution

The fourth proportional to 28,413.68, 42,618.97 and 8,692.23 is: 13,037.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,413.68 : 42,618.97 = 8,692.23 : x
  2. Step 2: Convert to fraction form
    28,413.68/42,618.97 = 8,692.23/x
  3. Step 3: Cross multiply
    28,413.68x = 42,618.97 × 8,692.23
  4. Step 4: Simplify right side
    28,413.68x = 370,453,867.87
  5. Step 5: Solve for x
    x = 370,453,867.87/28,413.68
  6. Step 6: Final answer
    x = 13,037.87

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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.