Home / 28,580.32-39,433.12-16,480.48

Finding the Fourth Proportional to 28,580.32, 39,433.12 and 16,480.48

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Solution

The fourth proportional to 28,580.32, 39,433.12 and 16,480.48 is: 22,738.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,580.32 : 39,433.12 = 16,480.48 : x
  2. Step 2: Convert to fraction form
    28,580.32/39,433.12 = 16,480.48/x
  3. Step 3: Cross multiply
    28,580.32x = 39,433.12 × 16,480.48
  4. Step 4: Simplify right side
    28,580.32x = 649,876,745.50
  5. Step 5: Solve for x
    x = 649,876,745.50/28,580.32
  6. Step 6: Final answer
    x = 22,738.61

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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.