Home / 20,208.28-27,882.78-12,248.86

Finding the Fourth Proportional to 20,208.28, 27,882.78 and 12,248.86

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Solution

The fourth proportional to 20,208.28, 27,882.78 and 12,248.86 is: 16,900.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,208.28 : 27,882.78 = 12,248.86 : x
  2. Step 2: Convert to fraction form
    20,208.28/27,882.78 = 12,248.86/x
  3. Step 3: Cross multiply
    20,208.28x = 27,882.78 × 12,248.86
  4. Step 4: Simplify right side
    20,208.28x = 341,532,268.63
  5. Step 5: Solve for x
    x = 341,532,268.63/20,208.28
  6. Step 6: Final answer
    x = 16,900.61

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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.