Home / 37,659.46-51,969.58-20,431.56

Finding the Fourth Proportional to 37,659.46, 51,969.58 and 20,431.56

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Solution

The fourth proportional to 37,659.46, 51,969.58 and 20,431.56 is: 28,195.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,659.46 : 51,969.58 = 20,431.56 : x
  2. Step 2: Convert to fraction form
    37,659.46/51,969.58 = 20,431.56/x
  3. Step 3: Cross multiply
    37,659.46x = 51,969.58 × 20,431.56
  4. Step 4: Simplify right side
    37,659.46x = 1,061,819,591.94
  5. Step 5: Solve for x
    x = 1,061,819,591.94/37,659.46
  6. Step 6: Final answer
    x = 28,195.30

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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.