Home / 28,231.36-38,957.71-16,131.39

Finding the Fourth Proportional to 28,231.36, 38,957.71 and 16,131.39

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Solution

The fourth proportional to 28,231.36, 38,957.71 and 16,131.39 is: 22,260.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,231.36 : 38,957.71 = 16,131.39 : x
  2. Step 2: Convert to fraction form
    28,231.36/38,957.71 = 16,131.39/x
  3. Step 3: Cross multiply
    28,231.36x = 38,957.71 × 16,131.39
  4. Step 4: Simplify right side
    28,231.36x = 628,442,013.52
  5. Step 5: Solve for x
    x = 628,442,013.52/28,231.36
  6. Step 6: Final answer
    x = 22,260.42

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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.