Home / 21,395.75-29,523.87-11,834.12

Finding the Fourth Proportional to 21,395.75, 29,523.87 and 11,834.12

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Solution

The fourth proportional to 21,395.75, 29,523.87 and 11,834.12 is: 16,329.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,395.75 : 29,523.87 = 11,834.12 : x
  2. Step 2: Convert to fraction form
    21,395.75/29,523.87 = 11,834.12/x
  3. Step 3: Cross multiply
    21,395.75x = 29,523.87 × 11,834.12
  4. Step 4: Simplify right side
    21,395.75x = 349,388,872.83
  5. Step 5: Solve for x
    x = 349,388,872.83/21,395.75
  6. Step 6: Final answer
    x = 16,329.83

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.