Home / 28,103.01-38,786.24-16,772.99

Finding the Fourth Proportional to 28,103.01, 38,786.24 and 16,772.99

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Solution

The fourth proportional to 28,103.01, 38,786.24 and 16,772.99 is: 23,149.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,103.01 : 38,786.24 = 16,772.99 : x
  2. Step 2: Convert to fraction form
    28,103.01/38,786.24 = 16,772.99/x
  3. Step 3: Cross multiply
    28,103.01x = 38,786.24 × 16,772.99
  4. Step 4: Simplify right side
    28,103.01x = 650,560,937.86
  5. Step 5: Solve for x
    x = 650,560,937.86/28,103.01
  6. Step 6: Final answer
    x = 23,149.16

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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.