Home / 21,282.53-29,369.09-11,850.89

Finding the Fourth Proportional to 21,282.53, 29,369.09 and 11,850.89

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Solution

The fourth proportional to 21,282.53, 29,369.09 and 11,850.89 is: 16,353.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,282.53 : 29,369.09 = 11,850.89 : x
  2. Step 2: Convert to fraction form
    21,282.53/29,369.09 = 11,850.89/x
  3. Step 3: Cross multiply
    21,282.53x = 29,369.09 × 11,850.89
  4. Step 4: Simplify right side
    21,282.53x = 348,049,737.77
  5. Step 5: Solve for x
    x = 348,049,737.77/21,282.53
  6. Step 6: Final answer
    x = 16,353.78

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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.