Home / 32,771.20-45,227.28-18,620.32

Finding the Fourth Proportional to 32,771.20, 45,227.28 and 18,620.32

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Solution

The fourth proportional to 32,771.20, 45,227.28 and 18,620.32 is: 25,697.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,771.20 : 45,227.28 = 18,620.32 : x
  2. Step 2: Convert to fraction form
    32,771.20/45,227.28 = 18,620.32/x
  3. Step 3: Cross multiply
    32,771.20x = 45,227.28 × 18,620.32
  4. Step 4: Simplify right side
    32,771.20x = 842,146,426.33
  5. Step 5: Solve for x
    x = 842,146,426.33/32,771.20
  6. Step 6: Final answer
    x = 25,697.76

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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.