Home / 28,145.41-38,840.68-16,208.49

Finding the Fourth Proportional to 28,145.41, 38,840.68 and 16,208.49

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Solution

The fourth proportional to 28,145.41, 38,840.68 and 16,208.49 is: 22,367.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,145.41 : 38,840.68 = 16,208.49 : x
  2. Step 2: Convert to fraction form
    28,145.41/38,840.68 = 16,208.49/x
  3. Step 3: Cross multiply
    28,145.41x = 38,840.68 × 16,208.49
  4. Step 4: Simplify right side
    28,145.41x = 629,548,773.37
  5. Step 5: Solve for x
    x = 629,548,773.37/28,145.41
  6. Step 6: Final answer
    x = 22,367.72

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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.