Home / 16,823.91-25,233.11-11,878.55

Finding the Fourth Proportional to 16,823.91, 25,233.11 and 11,878.55

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Solution

The fourth proportional to 16,823.91, 25,233.11 and 11,878.55 is: 17,815.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,823.91 : 25,233.11 = 11,878.55 : x
  2. Step 2: Convert to fraction form
    16,823.91/25,233.11 = 11,878.55/x
  3. Step 3: Cross multiply
    16,823.91x = 25,233.11 × 11,878.55
  4. Step 4: Simplify right side
    16,823.91x = 299,732,807.03
  5. Step 5: Solve for x
    x = 299,732,807.03/16,823.91
  6. Step 6: Final answer
    x = 17,815.89

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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.