Home / 21,800.28-32,708.70-11,404.92

Finding the Fourth Proportional to 21,800.28, 32,708.70 and 11,404.92

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Solution

The fourth proportional to 21,800.28, 32,708.70 and 11,404.92 is: 17,111.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,800.28 : 32,708.70 = 11,404.92 : x
  2. Step 2: Convert to fraction form
    21,800.28/32,708.70 = 11,404.92/x
  3. Step 3: Cross multiply
    21,800.28x = 32,708.70 × 11,404.92
  4. Step 4: Simplify right side
    21,800.28x = 373,040,106.80
  5. Step 5: Solve for x
    x = 373,040,106.80/21,800.28
  6. Step 6: Final answer
    x = 17,111.71

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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.