Home / 31,504.71-43,474.80-18,772.32

Finding the Fourth Proportional to 31,504.71, 43,474.80 and 18,772.32

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Solution

The fourth proportional to 31,504.71, 43,474.80 and 18,772.32 is: 25,904.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,504.71 : 43,474.80 = 18,772.32 : x
  2. Step 2: Convert to fraction form
    31,504.71/43,474.80 = 18,772.32/x
  3. Step 3: Cross multiply
    31,504.71x = 43,474.80 × 18,772.32
  4. Step 4: Simplify right side
    31,504.71x = 816,122,857.54
  5. Step 5: Solve for x
    x = 816,122,857.54/31,504.71
  6. Step 6: Final answer
    x = 25,904.79

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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.