Home / 38,185.20-57,272.40-11,892.60

Finding the Fourth Proportional to 38,185.20, 57,272.40 and 11,892.60

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Solution

The fourth proportional to 38,185.20, 57,272.40 and 11,892.60 is: 17,837.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,185.20 : 57,272.40 = 11,892.60 : x
  2. Step 2: Convert to fraction form
    38,185.20/57,272.40 = 11,892.60/x
  3. Step 3: Cross multiply
    38,185.20x = 57,272.40 × 11,892.60
  4. Step 4: Simplify right side
    38,185.20x = 681,117,744.24
  5. Step 5: Solve for x
    x = 681,117,744.24/38,185.20
  6. Step 6: Final answer
    x = 17,837.22

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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.