Home / 28,988.67-40,003.23-16,413.42

Finding the Fourth Proportional to 28,988.67, 40,003.23 and 16,413.42

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Solution

The fourth proportional to 28,988.67, 40,003.23 and 16,413.42 is: 22,649.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,988.67 : 40,003.23 = 16,413.42 : x
  2. Step 2: Convert to fraction form
    28,988.67/40,003.23 = 16,413.42/x
  3. Step 3: Cross multiply
    28,988.67x = 40,003.23 × 16,413.42
  4. Step 4: Simplify right side
    28,988.67x = 656,589,815.35
  5. Step 5: Solve for x
    x = 656,589,815.35/28,988.67
  6. Step 6: Final answer
    x = 22,649.88

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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.