Home / 28,686.26-43,012.69-11,135.59

Finding the Fourth Proportional to 28,686.26, 43,012.69 and 11,135.59

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Solution

The fourth proportional to 28,686.26, 43,012.69 and 11,135.59 is: 16,696.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,686.26 : 43,012.69 = 11,135.59 : x
  2. Step 2: Convert to fraction form
    28,686.26/43,012.69 = 11,135.59/x
  3. Step 3: Cross multiply
    28,686.26x = 43,012.69 × 11,135.59
  4. Step 4: Simplify right side
    28,686.26x = 478,971,545.27
  5. Step 5: Solve for x
    x = 478,971,545.27/28,686.26
  6. Step 6: Final answer
    x = 16,696.90

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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.