Home / 16,871.24-25,279.25-5,771.90

Finding the Fourth Proportional to 16,871.24, 25,279.25 and 5,771.90

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Solution

The fourth proportional to 16,871.24, 25,279.25 and 5,771.90 is: 8,648.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,871.24 : 25,279.25 = 5,771.90 : x
  2. Step 2: Convert to fraction form
    16,871.24/25,279.25 = 5,771.90/x
  3. Step 3: Cross multiply
    16,871.24x = 25,279.25 × 5,771.90
  4. Step 4: Simplify right side
    16,871.24x = 145,909,337.41
  5. Step 5: Solve for x
    x = 145,909,337.41/16,871.24
  6. Step 6: Final answer
    x = 8,648.40

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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.