Home / 28,103.83-38,778.62-16,777.91

Finding the Fourth Proportional to 28,103.83, 38,778.62 and 16,777.91

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Solution

The fourth proportional to 28,103.83, 38,778.62 and 16,777.91 is: 23,150.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,103.83 : 38,778.62 = 16,777.91 : x
  2. Step 2: Convert to fraction form
    28,103.83/38,778.62 = 16,777.91/x
  3. Step 3: Cross multiply
    28,103.83x = 38,778.62 × 16,777.91
  4. Step 4: Simplify right side
    28,103.83x = 650,624,209.34
  5. Step 5: Solve for x
    x = 650,624,209.34/28,103.83
  6. Step 6: Final answer
    x = 23,150.73

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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.