Home / 37,185.75-51,316.34-20,419.83

Finding the Fourth Proportional to 37,185.75, 51,316.34 and 20,419.83

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Solution

The fourth proportional to 37,185.75, 51,316.34 and 20,419.83 is: 28,179.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,185.75 : 51,316.34 = 20,419.83 : x
  2. Step 2: Convert to fraction form
    37,185.75/51,316.34 = 20,419.83/x
  3. Step 3: Cross multiply
    37,185.75x = 51,316.34 × 20,419.83
  4. Step 4: Simplify right side
    37,185.75x = 1,047,870,836.92
  5. Step 5: Solve for x
    x = 1,047,870,836.92/37,185.75
  6. Step 6: Final answer
    x = 28,179.37

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Double scale
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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.