Home / 14,027.42-21,033.81-12,428.61

Finding the Fourth Proportional to 14,027.42, 21,033.81 and 12,428.61

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Solution

The fourth proportional to 14,027.42, 21,033.81 and 12,428.61 is: 18,636.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,027.42 : 21,033.81 = 12,428.61 : x
  2. Step 2: Convert to fraction form
    14,027.42/21,033.81 = 12,428.61/x
  3. Step 3: Cross multiply
    14,027.42x = 21,033.81 × 12,428.61
  4. Step 4: Simplify right side
    14,027.42x = 261,421,021.30
  5. Step 5: Solve for x
    x = 261,421,021.30/14,027.42
  6. Step 6: Final answer
    x = 18,636.43

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1.5x scale

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.