Home / 28,135.19-42,181.77-17,039.18

Finding the Fourth Proportional to 28,135.19, 42,181.77 and 17,039.18

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Solution

The fourth proportional to 28,135.19, 42,181.77 and 17,039.18 is: 25,546.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,135.19 : 42,181.77 = 17,039.18 : x
  2. Step 2: Convert to fraction form
    28,135.19/42,181.77 = 17,039.18/x
  3. Step 3: Cross multiply
    28,135.19x = 42,181.77 × 17,039.18
  4. Step 4: Simplify right side
    28,135.19x = 718,742,771.75
  5. Step 5: Solve for x
    x = 718,742,771.75/28,135.19
  6. Step 6: Final answer
    x = 25,546.04

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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.