Home / 28,104.05-42,144.35-11,452.79

Finding the Fourth Proportional to 28,104.05, 42,144.35 and 11,452.79

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Solution

The fourth proportional to 28,104.05, 42,144.35 and 11,452.79 is: 17,174.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,104.05 : 42,144.35 = 11,452.79 : x
  2. Step 2: Convert to fraction form
    28,104.05/42,144.35 = 11,452.79/x
  3. Step 3: Cross multiply
    28,104.05x = 42,144.35 × 11,452.79
  4. Step 4: Simplify right side
    28,104.05x = 482,670,122.25
  5. Step 5: Solve for x
    x = 482,670,122.25/28,104.05
  6. Step 6: Final answer
    x = 17,174.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.