Home / 28,899.68-43,349.60-8,123.36

Finding the Fourth Proportional to 28,899.68, 43,349.60 and 8,123.36

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Solution

The fourth proportional to 28,899.68, 43,349.60 and 8,123.36 is: 12,185.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,899.68 : 43,349.60 = 8,123.36 : x
  2. Step 2: Convert to fraction form
    28,899.68/43,349.60 = 8,123.36/x
  3. Step 3: Cross multiply
    28,899.68x = 43,349.60 × 8,123.36
  4. Step 4: Simplify right side
    28,899.68x = 352,144,406.66
  5. Step 5: Solve for x
    x = 352,144,406.66/28,899.68
  6. Step 6: Final answer
    x = 12,185.06

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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.