Home / 20,232.20-27,908.38-15,748.86

Finding the Fourth Proportional to 20,232.20, 27,908.38 and 15,748.86

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Solution

The fourth proportional to 20,232.20, 27,908.38 and 15,748.86 is: 21,724.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,232.20 : 27,908.38 = 15,748.86 : x
  2. Step 2: Convert to fraction form
    20,232.20/27,908.38 = 15,748.86/x
  3. Step 3: Cross multiply
    20,232.20x = 27,908.38 × 15,748.86
  4. Step 4: Simplify right side
    20,232.20x = 439,525,169.45
  5. Step 5: Solve for x
    x = 439,525,169.45/20,232.20
  6. Step 6: Final answer
    x = 21,724.04

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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.