Home / 31,655.94-43,672.92-20,322.42

Finding the Fourth Proportional to 31,655.94, 43,672.92 and 20,322.42

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Solution

The fourth proportional to 31,655.94, 43,672.92 and 20,322.42 is: 28,037.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,655.94 : 43,672.92 = 20,322.42 : x
  2. Step 2: Convert to fraction form
    31,655.94/43,672.92 = 20,322.42/x
  3. Step 3: Cross multiply
    31,655.94x = 43,672.92 × 20,322.42
  4. Step 4: Simplify right side
    31,655.94x = 887,539,422.87
  5. Step 5: Solve for x
    x = 887,539,422.87/31,655.94
  6. Step 6: Final answer
    x = 28,037.06

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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.