Home / 37,185.56-51,316.10-20,189.78

Finding the Fourth Proportional to 37,185.56, 51,316.10 and 20,189.78

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Solution

The fourth proportional to 37,185.56, 51,316.10 and 20,189.78 is: 27,861.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,185.56 : 51,316.10 = 20,189.78 : x
  2. Step 2: Convert to fraction form
    37,185.56/51,316.10 = 20,189.78/x
  3. Step 3: Cross multiply
    37,185.56x = 51,316.10 × 20,189.78
  4. Step 4: Simplify right side
    37,185.56x = 1,036,060,769.46
  5. Step 5: Solve for x
    x = 1,036,060,769.46/37,185.56
  6. Step 6: Final answer
    x = 27,861.91

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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.