Home / 20,385.42-30,528.87-11,593.68

Finding the Fourth Proportional to 20,385.42, 30,528.87 and 11,593.68

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Solution

The fourth proportional to 20,385.42, 30,528.87 and 11,593.68 is: 17,362.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,385.42 : 30,528.87 = 11,593.68 : x
  2. Step 2: Convert to fraction form
    20,385.42/30,528.87 = 11,593.68/x
  3. Step 3: Cross multiply
    20,385.42x = 30,528.87 × 11,593.68
  4. Step 4: Simplify right side
    20,385.42x = 353,941,949.54
  5. Step 5: Solve for x
    x = 353,941,949.54/20,385.42
  6. Step 6: Final answer
    x = 17,362.50

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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.