Home / 20,200.55-30,253.84-19,499.76

Finding the Fourth Proportional to 20,200.55, 30,253.84 and 19,499.76

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Solution

The fourth proportional to 20,200.55, 30,253.84 and 19,499.76 is: 29,204.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,200.55 : 30,253.84 = 19,499.76 : x
  2. Step 2: Convert to fraction form
    20,200.55/30,253.84 = 19,499.76/x
  3. Step 3: Cross multiply
    20,200.55x = 30,253.84 × 19,499.76
  4. Step 4: Simplify right side
    20,200.55x = 589,942,619.08
  5. Step 5: Solve for x
    x = 589,942,619.08/20,200.55
  6. Step 6: Final answer
    x = 29,204.28

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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.