Home / 20,134.22-27,775.83-15,410.30

Finding the Fourth Proportional to 20,134.22, 27,775.83 and 15,410.30

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Solution

The fourth proportional to 20,134.22, 27,775.83 and 15,410.30 is: 21,259.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,134.22 : 27,775.83 = 15,410.30 : x
  2. Step 2: Convert to fraction form
    20,134.22/27,775.83 = 15,410.30/x
  3. Step 3: Cross multiply
    20,134.22x = 27,775.83 × 15,410.30
  4. Step 4: Simplify right side
    20,134.22x = 428,033,873.05
  5. Step 5: Solve for x
    x = 428,033,873.05/20,134.22
  6. Step 6: Final answer
    x = 21,259.02

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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.