Home / 25,936.80-38,911.36-11,145.86

Finding the Fourth Proportional to 25,936.80, 38,911.36 and 11,145.86

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Solution

The fourth proportional to 25,936.80, 38,911.36 and 11,145.86 is: 16,721.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,936.80 : 38,911.36 = 11,145.86 : x
  2. Step 2: Convert to fraction form
    25,936.80/38,911.36 = 11,145.86/x
  3. Step 3: Cross multiply
    25,936.80x = 38,911.36 × 11,145.86
  4. Step 4: Simplify right side
    25,936.80x = 433,700,570.97
  5. Step 5: Solve for x
    x = 433,700,570.97/25,936.80
  6. Step 6: Final answer
    x = 16,721.44

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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.