Home / 28,994.05-43,478.78-10,278.80

Finding the Fourth Proportional to 28,994.05, 43,478.78 and 10,278.80

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Solution

The fourth proportional to 28,994.05, 43,478.78 and 10,278.80 is: 15,413.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,994.05 : 43,478.78 = 10,278.80 : x
  2. Step 2: Convert to fraction form
    28,994.05/43,478.78 = 10,278.80/x
  3. Step 3: Cross multiply
    28,994.05x = 43,478.78 × 10,278.80
  4. Step 4: Simplify right side
    28,994.05x = 446,909,578.12
  5. Step 5: Solve for x
    x = 446,909,578.12/28,994.05
  6. Step 6: Final answer
    x = 15,413.84

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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.