Home / 28,230.09-38,958.06-16,900.08

Finding the Fourth Proportional to 28,230.09, 38,958.06 and 16,900.08

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Solution

The fourth proportional to 28,230.09, 38,958.06 and 16,900.08 is: 23,322.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,230.09 : 38,958.06 = 16,900.08 : x
  2. Step 2: Convert to fraction form
    28,230.09/38,958.06 = 16,900.08/x
  3. Step 3: Cross multiply
    28,230.09x = 38,958.06 × 16,900.08
  4. Step 4: Simplify right side
    28,230.09x = 658,394,247.93
  5. Step 5: Solve for x
    x = 658,394,247.93/28,230.09
  6. Step 6: Final answer
    x = 23,322.43

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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.