Home / 28,168.36-38,872.86-16,229.68

Finding the Fourth Proportional to 28,168.36, 38,872.86 and 16,229.68

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Solution

The fourth proportional to 28,168.36, 38,872.86 and 16,229.68 is: 22,397.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,168.36 : 38,872.86 = 16,229.68 : x
  2. Step 2: Convert to fraction form
    28,168.36/38,872.86 = 16,229.68/x
  3. Step 3: Cross multiply
    28,168.36x = 38,872.86 × 16,229.68
  4. Step 4: Simplify right side
    28,168.36x = 630,894,078.48
  5. Step 5: Solve for x
    x = 630,894,078.48/28,168.36
  6. Step 6: Final answer
    x = 22,397.26

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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.