Home / 38,238.72-57,359.04-18,513.60

Finding the Fourth Proportional to 38,238.72, 57,359.04 and 18,513.60

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Solution

The fourth proportional to 38,238.72, 57,359.04 and 18,513.60 is: 27,770.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,238.72 : 57,359.04 = 18,513.60 : x
  2. Step 2: Convert to fraction form
    38,238.72/57,359.04 = 18,513.60/x
  3. Step 3: Cross multiply
    38,238.72x = 57,359.04 × 18,513.60
  4. Step 4: Simplify right side
    38,238.72x = 1,061,922,322.94
  5. Step 5: Solve for x
    x = 1,061,922,322.94/38,238.72
  6. Step 6: Final answer
    x = 27,770.86

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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.