Home / 38,076.11-57,120.64-19,109.79

Finding the Fourth Proportional to 38,076.11, 57,120.64 and 19,109.79

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Solution

The fourth proportional to 38,076.11, 57,120.64 and 19,109.79 is: 28,667.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,076.11 : 57,120.64 = 19,109.79 : x
  2. Step 2: Convert to fraction form
    38,076.11/57,120.64 = 19,109.79/x
  3. Step 3: Cross multiply
    38,076.11x = 57,120.64 × 19,109.79
  4. Step 4: Simplify right side
    38,076.11x = 1,091,563,253.81
  5. Step 5: Solve for x
    x = 1,091,563,253.81/38,076.11
  6. Step 6: Final answer
    x = 28,667.93

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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.