Home / 31,785.44-43,857.52-19,210.88

Finding the Fourth Proportional to 31,785.44, 43,857.52 and 19,210.88

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Solution

The fourth proportional to 31,785.44, 43,857.52 and 19,210.88 is: 26,507.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,785.44 : 43,857.52 = 19,210.88 : x
  2. Step 2: Convert to fraction form
    31,785.44/43,857.52 = 19,210.88/x
  3. Step 3: Cross multiply
    31,785.44x = 43,857.52 × 19,210.88
  4. Step 4: Simplify right side
    31,785.44x = 842,541,553.82
  5. Step 5: Solve for x
    x = 842,541,553.82/31,785.44
  6. Step 6: Final answer
    x = 26,507.15

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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.