Home / 20,201.70-30,346.20-17,087.88

Finding the Fourth Proportional to 20,201.70, 30,346.20 and 17,087.88

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Solution

The fourth proportional to 20,201.70, 30,346.20 and 17,087.88 is: 25,668.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,201.70 : 30,346.20 = 17,087.88 : x
  2. Step 2: Convert to fraction form
    20,201.70/30,346.20 = 17,087.88/x
  3. Step 3: Cross multiply
    20,201.70x = 30,346.20 × 17,087.88
  4. Step 4: Simplify right side
    20,201.70x = 518,552,224.06
  5. Step 5: Solve for x
    x = 518,552,224.06/20,201.70
  6. Step 6: Final answer
    x = 25,668.74

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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.