Home / 28,669.39-43,006.80-11,140.57

Finding the Fourth Proportional to 28,669.39, 43,006.80 and 11,140.57

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Solution

The fourth proportional to 28,669.39, 43,006.80 and 11,140.57 is: 16,711.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,669.39 : 43,006.80 = 11,140.57 : x
  2. Step 2: Convert to fraction form
    28,669.39/43,006.80 = 11,140.57/x
  3. Step 3: Cross multiply
    28,669.39x = 43,006.80 × 11,140.57
  4. Step 4: Simplify right side
    28,669.39x = 479,120,265.88
  5. Step 5: Solve for x
    x = 479,120,265.88/28,669.39
  6. Step 6: Final answer
    x = 16,711.91

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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.