Home / 28,486.20-42,696.72-17,817.41

Finding the Fourth Proportional to 28,486.20, 42,696.72 and 17,817.41

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Solution

The fourth proportional to 28,486.20, 42,696.72 and 17,817.41 is: 26,705.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,486.20 : 42,696.72 = 17,817.41 : x
  2. Step 2: Convert to fraction form
    28,486.20/42,696.72 = 17,817.41/x
  3. Step 3: Cross multiply
    28,486.20x = 42,696.72 × 17,817.41
  4. Step 4: Simplify right side
    28,486.20x = 760,744,752.41
  5. Step 5: Solve for x
    x = 760,744,752.41/28,486.20
  6. Step 6: Final answer
    x = 26,705.73

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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.