Home / 20,850.75-28,774.24-12,467.25

Finding the Fourth Proportional to 20,850.75, 28,774.24 and 12,467.25

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Solution

The fourth proportional to 20,850.75, 28,774.24 and 12,467.25 is: 17,204.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,850.75 : 28,774.24 = 12,467.25 : x
  2. Step 2: Convert to fraction form
    20,850.75/28,774.24 = 12,467.25/x
  3. Step 3: Cross multiply
    20,850.75x = 28,774.24 × 12,467.25
  4. Step 4: Simplify right side
    20,850.75x = 358,735,612.47
  5. Step 5: Solve for x
    x = 358,735,612.47/20,850.75
  6. Step 6: Final answer
    x = 17,204.93

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.