Home / 38,137.26-57,196.78-13,178.20

Finding the Fourth Proportional to 38,137.26, 57,196.78 and 13,178.20

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Solution

The fourth proportional to 38,137.26, 57,196.78 and 13,178.20 is: 19,764.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,137.26 : 57,196.78 = 13,178.20 : x
  2. Step 2: Convert to fraction form
    38,137.26/57,196.78 = 13,178.20/x
  3. Step 3: Cross multiply
    38,137.26x = 57,196.78 × 13,178.20
  4. Step 4: Simplify right side
    38,137.26x = 753,750,606.20
  5. Step 5: Solve for x
    x = 753,750,606.20/38,137.26
  6. Step 6: Final answer
    x = 19,764.15

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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.