Home / 16,939.12-25,411.14-5,253.28

Finding the Fourth Proportional to 16,939.12, 25,411.14 and 5,253.28

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Solution

The fourth proportional to 16,939.12, 25,411.14 and 5,253.28 is: 7,880.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,939.12 : 25,411.14 = 5,253.28 : x
  2. Step 2: Convert to fraction form
    16,939.12/25,411.14 = 5,253.28/x
  3. Step 3: Cross multiply
    16,939.12x = 25,411.14 × 5,253.28
  4. Step 4: Simplify right side
    16,939.12x = 133,491,833.54
  5. Step 5: Solve for x
    x = 133,491,833.54/16,939.12
  6. Step 6: Final answer
    x = 7,880.68

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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.