Home / 38,076.39-57,120.71-13,110.30

Finding the Fourth Proportional to 38,076.39, 57,120.71 and 13,110.30

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Solution

The fourth proportional to 38,076.39, 57,120.71 and 13,110.30 is: 19,667.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,076.39 : 57,120.71 = 13,110.30 : x
  2. Step 2: Convert to fraction form
    38,076.39/57,120.71 = 13,110.30/x
  3. Step 3: Cross multiply
    38,076.39x = 57,120.71 × 13,110.30
  4. Step 4: Simplify right side
    38,076.39x = 748,869,578.76
  5. Step 5: Solve for x
    x = 748,869,578.76/38,076.39
  6. Step 6: Final answer
    x = 19,667.56

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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.