Home / 19,200.15-28,735.20-11,809.29

Finding the Fourth Proportional to 19,200.15, 28,735.20 and 11,809.29

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Solution

The fourth proportional to 19,200.15, 28,735.20 and 11,809.29 is: 17,673.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,200.15 : 28,735.20 = 11,809.29 : x
  2. Step 2: Convert to fraction form
    19,200.15/28,735.20 = 11,809.29/x
  3. Step 3: Cross multiply
    19,200.15x = 28,735.20 × 11,809.29
  4. Step 4: Simplify right side
    19,200.15x = 339,342,310.01
  5. Step 5: Solve for x
    x = 339,342,310.01/19,200.15
  6. Step 6: Final answer
    x = 17,673.94

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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.