Home / 31,634.37-43,655.47-18,205.38

Finding the Fourth Proportional to 31,634.37, 43,655.47 and 18,205.38

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Solution

The fourth proportional to 31,634.37, 43,655.47 and 18,205.38 is: 25,123.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,634.37 : 43,655.47 = 18,205.38 : x
  2. Step 2: Convert to fraction form
    31,634.37/43,655.47 = 18,205.38/x
  3. Step 3: Cross multiply
    31,634.37x = 43,655.47 × 18,205.38
  4. Step 4: Simplify right side
    31,634.37x = 794,764,374.92
  5. Step 5: Solve for x
    x = 794,764,374.92/31,634.37
  6. Step 6: Final answer
    x = 25,123.45

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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.