Home / 16,905.11-25,361.28-5,059.80

Finding the Fourth Proportional to 16,905.11, 25,361.28 and 5,059.80

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Solution

The fourth proportional to 16,905.11, 25,361.28 and 5,059.80 is: 7,590.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,905.11 : 25,361.28 = 5,059.80 : x
  2. Step 2: Convert to fraction form
    16,905.11/25,361.28 = 5,059.80/x
  3. Step 3: Cross multiply
    16,905.11x = 25,361.28 × 5,059.80
  4. Step 4: Simplify right side
    16,905.11x = 128,323,004.54
  5. Step 5: Solve for x
    x = 128,323,004.54/16,905.11
  6. Step 6: Final answer
    x = 7,590.78

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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.