Home / 19,696.18-27,190.75-15,209.86

Finding the Fourth Proportional to 19,696.18, 27,190.75 and 15,209.86

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Solution

The fourth proportional to 19,696.18, 27,190.75 and 15,209.86 is: 20,997.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,696.18 : 27,190.75 = 15,209.86 : x
  2. Step 2: Convert to fraction form
    19,696.18/27,190.75 = 15,209.86/x
  3. Step 3: Cross multiply
    19,696.18x = 27,190.75 × 15,209.86
  4. Step 4: Simplify right side
    19,696.18x = 413,567,364.84
  5. Step 5: Solve for x
    x = 413,567,364.84/19,696.18
  6. Step 6: Final answer
    x = 20,997.34

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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.