Home / 20,176.07-27,842.20-11,223.27

Finding the Fourth Proportional to 20,176.07, 27,842.20 and 11,223.27

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Solution

The fourth proportional to 20,176.07, 27,842.20 and 11,223.27 is: 15,487.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,176.07 : 27,842.20 = 11,223.27 : x
  2. Step 2: Convert to fraction form
    20,176.07/27,842.20 = 11,223.27/x
  3. Step 3: Cross multiply
    20,176.07x = 27,842.20 × 11,223.27
  4. Step 4: Simplify right side
    20,176.07x = 312,480,499.94
  5. Step 5: Solve for x
    x = 312,480,499.94/20,176.07
  6. Step 6: Final answer
    x = 15,487.68

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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.