Home / 38,126.40-57,190.80-13,167.60

Finding the Fourth Proportional to 38,126.40, 57,190.80 and 13,167.60

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Solution

The fourth proportional to 38,126.40, 57,190.80 and 13,167.60 is: 19,751.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,126.40 : 57,190.80 = 13,167.60 : x
  2. Step 2: Convert to fraction form
    38,126.40/57,190.80 = 13,167.60/x
  3. Step 3: Cross multiply
    38,126.40x = 57,190.80 × 13,167.60
  4. Step 4: Simplify right side
    38,126.40x = 753,065,578.08
  5. Step 5: Solve for x
    x = 753,065,578.08/38,126.40
  6. Step 6: Final answer
    x = 19,751.81

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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.