Home / 28,608.38-39,480.10-16,672.42

Finding the Fourth Proportional to 28,608.38, 39,480.10 and 16,672.42

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Solution

The fourth proportional to 28,608.38, 39,480.10 and 16,672.42 is: 23,008.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,608.38 : 39,480.10 = 16,672.42 : x
  2. Step 2: Convert to fraction form
    28,608.38/39,480.10 = 16,672.42/x
  3. Step 3: Cross multiply
    28,608.38x = 39,480.10 × 16,672.42
  4. Step 4: Simplify right side
    28,608.38x = 658,228,808.84
  5. Step 5: Solve for x
    x = 658,228,808.84/28,608.38
  6. Step 6: Final answer
    x = 23,008.25

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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.