Home / 22,115.37-30,540.90-18,910.17

Finding the Fourth Proportional to 22,115.37, 30,540.90 and 18,910.17

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Solution

The fourth proportional to 22,115.37, 30,540.90 and 18,910.17 is: 26,114.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,115.37 : 30,540.90 = 18,910.17 : x
  2. Step 2: Convert to fraction form
    22,115.37/30,540.90 = 18,910.17/x
  3. Step 3: Cross multiply
    22,115.37x = 30,540.90 × 18,910.17
  4. Step 4: Simplify right side
    22,115.37x = 577,533,610.95
  5. Step 5: Solve for x
    x = 577,533,610.95/22,115.37
  6. Step 6: Final answer
    x = 26,114.58

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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.