Home / 31,189.95-43,037.78-17,760.56

Finding the Fourth Proportional to 31,189.95, 43,037.78 and 17,760.56

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Solution

The fourth proportional to 31,189.95, 43,037.78 and 17,760.56 is: 24,507.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,189.95 : 43,037.78 = 17,760.56 : x
  2. Step 2: Convert to fraction form
    31,189.95/43,037.78 = 17,760.56/x
  3. Step 3: Cross multiply
    31,189.95x = 43,037.78 × 17,760.56
  4. Step 4: Simplify right side
    31,189.95x = 764,374,769.97
  5. Step 5: Solve for x
    x = 764,374,769.97/31,189.95
  6. Step 6: Final answer
    x = 24,507.09

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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.