Home / 31,672.60-43,695.46-18,236.64

Finding the Fourth Proportional to 31,672.60, 43,695.46 and 18,236.64

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Solution

The fourth proportional to 31,672.60, 43,695.46 and 18,236.64 is: 25,159.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,672.60 : 43,695.46 = 18,236.64 : x
  2. Step 2: Convert to fraction form
    31,672.60/43,695.46 = 18,236.64/x
  3. Step 3: Cross multiply
    31,672.60x = 43,695.46 × 18,236.64
  4. Step 4: Simplify right side
    31,672.60x = 796,858,373.65
  5. Step 5: Solve for x
    x = 796,858,373.65/31,672.60
  6. Step 6: Final answer
    x = 25,159.23

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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.