Home / 37,186.75-51,317.72-20,419.75

Finding the Fourth Proportional to 37,186.75, 51,317.72 and 20,419.75

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Solution

The fourth proportional to 37,186.75, 51,317.72 and 20,419.75 is: 28,179.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,186.75 : 51,317.72 = 20,419.75 : x
  2. Step 2: Convert to fraction form
    37,186.75/51,317.72 = 20,419.75/x
  3. Step 3: Cross multiply
    37,186.75x = 51,317.72 × 20,419.75
  4. Step 4: Simplify right side
    37,186.75x = 1,047,895,012.97
  5. Step 5: Solve for x
    x = 1,047,895,012.97/37,186.75
  6. Step 6: Final answer
    x = 28,179.26

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.