Home / 28,135.40-38,822.54-16,196.42

Finding the Fourth Proportional to 28,135.40, 38,822.54 and 16,196.42

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Solution

The fourth proportional to 28,135.40, 38,822.54 and 16,196.42 is: 22,348.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,135.40 : 38,822.54 = 16,196.42 : x
  2. Step 2: Convert to fraction form
    28,135.40/38,822.54 = 16,196.42/x
  3. Step 3: Cross multiply
    28,135.40x = 38,822.54 × 16,196.42
  4. Step 4: Simplify right side
    28,135.40x = 628,786,179.38
  5. Step 5: Solve for x
    x = 628,786,179.38/28,135.40
  6. Step 6: Final answer
    x = 22,348.58

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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.