Home / 28,664.28-43,012.80-11,131.83

Finding the Fourth Proportional to 28,664.28, 43,012.80 and 11,131.83

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Solution

The fourth proportional to 28,664.28, 43,012.80 and 11,131.83 is: 16,704.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,664.28 : 43,012.80 = 11,131.83 : x
  2. Step 2: Convert to fraction form
    28,664.28/43,012.80 = 11,131.83/x
  3. Step 3: Cross multiply
    28,664.28x = 43,012.80 × 11,131.83
  4. Step 4: Simplify right side
    28,664.28x = 478,811,177.42
  5. Step 5: Solve for x
    x = 478,811,177.42/28,664.28
  6. Step 6: Final answer
    x = 16,704.11

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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.