Home / 28,179.42-38,884.32-16,242.66

Finding the Fourth Proportional to 28,179.42, 38,884.32 and 16,242.66

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Solution

The fourth proportional to 28,179.42, 38,884.32 and 16,242.66 is: 22,412.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,179.42 : 38,884.32 = 16,242.66 : x
  2. Step 2: Convert to fraction form
    28,179.42/38,884.32 = 16,242.66/x
  3. Step 3: Cross multiply
    28,179.42x = 38,884.32 × 16,242.66
  4. Step 4: Simplify right side
    28,179.42x = 631,584,789.09
  5. Step 5: Solve for x
    x = 631,584,789.09/28,179.42
  6. Step 6: Final answer
    x = 22,412.98

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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.