Home / 14,199.12-21,144-14,043.84

Finding the Fourth Proportional to 14,199.12, 21,144 and 14,043.84

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Solution

The fourth proportional to 14,199.12, 21,144 and 14,043.84 is: 20,912.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,199.12 : 21,144 = 14,043.84 : x
  2. Step 2: Convert to fraction form
    14,199.12/21,144 = 14,043.84/x
  3. Step 3: Cross multiply
    14,199.12x = 21,144 × 14,043.84
  4. Step 4: Simplify right side
    14,199.12x = 296,942,952.96
  5. Step 5: Solve for x
    x = 296,942,952.96/14,199.12
  6. Step 6: Final answer
    x = 20,912.77

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.