Home / 31,227.36-43,092.72-18,644.64

Finding the Fourth Proportional to 31,227.36, 43,092.72 and 18,644.64

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Solution

The fourth proportional to 31,227.36, 43,092.72 and 18,644.64 is: 25,728.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,227.36 : 43,092.72 = 18,644.64 : x
  2. Step 2: Convert to fraction form
    31,227.36/43,092.72 = 18,644.64/x
  3. Step 3: Cross multiply
    31,227.36x = 43,092.72 × 18,644.64
  4. Step 4: Simplify right side
    31,227.36x = 803,448,251.02
  5. Step 5: Solve for x
    x = 803,448,251.02/31,227.36
  6. Step 6: Final answer
    x = 25,728.98

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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.