Home / 20,529.20-30,803.52-11,771.52

Finding the Fourth Proportional to 20,529.20, 30,803.52 and 11,771.52

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Solution

The fourth proportional to 20,529.20, 30,803.52 and 11,771.52 is: 17,662.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,529.20 : 30,803.52 = 11,771.52 : x
  2. Step 2: Convert to fraction form
    20,529.20/30,803.52 = 11,771.52/x
  3. Step 3: Cross multiply
    20,529.20x = 30,803.52 × 11,771.52
  4. Step 4: Simplify right side
    20,529.20x = 362,604,251.75
  5. Step 5: Solve for x
    x = 362,604,251.75/20,529.20
  6. Step 6: Final answer
    x = 17,662.85

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.