Home / 18,742.44-28,121.54-17,165.69

Finding the Fourth Proportional to 18,742.44, 28,121.54 and 17,165.69

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Solution

The fourth proportional to 18,742.44, 28,121.54 and 17,165.69 is: 25,755.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,742.44 : 28,121.54 = 17,165.69 : x
  2. Step 2: Convert to fraction form
    18,742.44/28,121.54 = 17,165.69/x
  3. Step 3: Cross multiply
    18,742.44x = 28,121.54 × 17,165.69
  4. Step 4: Simplify right side
    18,742.44x = 482,725,411.53
  5. Step 5: Solve for x
    x = 482,725,411.53/18,742.44
  6. Step 6: Final answer
    x = 25,755.74

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1.5x scale

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.