Home / 38,523.20-57,784.80-19,777.10

Finding the Fourth Proportional to 38,523.20, 57,784.80 and 19,777.10

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Solution

The fourth proportional to 38,523.20, 57,784.80 and 19,777.10 is: 29,665.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,523.20 : 57,784.80 = 19,777.10 : x
  2. Step 2: Convert to fraction form
    38,523.20/57,784.80 = 19,777.10/x
  3. Step 3: Cross multiply
    38,523.20x = 57,784.80 × 19,777.10
  4. Step 4: Simplify right side
    38,523.20x = 1,142,815,768.08
  5. Step 5: Solve for x
    x = 1,142,815,768.08/38,523.20
  6. Step 6: Final answer
    x = 29,665.65

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Similar ratio
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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.