Home / 31,671.60-43,694.08-18,235.64

Finding the Fourth Proportional to 31,671.60, 43,694.08 and 18,235.64

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Solution

The fourth proportional to 31,671.60, 43,694.08 and 18,235.64 is: 25,157.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,671.60 : 43,694.08 = 18,235.64 : x
  2. Step 2: Convert to fraction form
    31,671.60/43,694.08 = 18,235.64/x
  3. Step 3: Cross multiply
    31,671.60x = 43,694.08 × 18,235.64
  4. Step 4: Simplify right side
    31,671.60x = 796,789,513.01
  5. Step 5: Solve for x
    x = 796,789,513.01/31,671.60
  6. Step 6: Final answer
    x = 25,157.85

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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.