Home / 28,418.26-39,212.60-16,479.28

Finding the Fourth Proportional to 28,418.26, 39,212.60 and 16,479.28

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Solution

The fourth proportional to 28,418.26, 39,212.60 and 16,479.28 is: 22,738.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,418.26 : 39,212.60 = 16,479.28 : x
  2. Step 2: Convert to fraction form
    28,418.26/39,212.60 = 16,479.28/x
  3. Step 3: Cross multiply
    28,418.26x = 39,212.60 × 16,479.28
  4. Step 4: Simplify right side
    28,418.26x = 646,195,414.93
  5. Step 5: Solve for x
    x = 646,195,414.93/28,418.26
  6. Step 6: Final answer
    x = 22,738.74

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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.