Home / 20,217.37-27,901.58-11,144.35

Finding the Fourth Proportional to 20,217.37, 27,901.58 and 11,144.35

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Solution

The fourth proportional to 20,217.37, 27,901.58 and 11,144.35 is: 15,380.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,217.37 : 27,901.58 = 11,144.35 : x
  2. Step 2: Convert to fraction form
    20,217.37/27,901.58 = 11,144.35/x
  3. Step 3: Cross multiply
    20,217.37x = 27,901.58 × 11,144.35
  4. Step 4: Simplify right side
    20,217.37x = 310,944,777.84
  5. Step 5: Solve for x
    x = 310,944,777.84/20,217.37
  6. Step 6: Final answer
    x = 15,380.08

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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.