Home / 28,435.26-42,634.65-11,806.77

Finding the Fourth Proportional to 28,435.26, 42,634.65 and 11,806.77

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Solution

The fourth proportional to 28,435.26, 42,634.65 and 11,806.77 is: 17,702.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,435.26 : 42,634.65 = 11,806.77 : x
  2. Step 2: Convert to fraction form
    28,435.26/42,634.65 = 11,806.77/x
  3. Step 3: Cross multiply
    28,435.26x = 42,634.65 × 11,806.77
  4. Step 4: Simplify right side
    28,435.26x = 503,377,506.58
  5. Step 5: Solve for x
    x = 503,377,506.58/28,435.26
  6. Step 6: Final answer
    x = 17,702.58

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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.