Home / 31,921.24-47,829.20-18,556.73

Finding the Fourth Proportional to 31,921.24, 47,829.20 and 18,556.73

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Solution

The fourth proportional to 31,921.24, 47,829.20 and 18,556.73 is: 27,804.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,921.24 : 47,829.20 = 18,556.73 : x
  2. Step 2: Convert to fraction form
    31,921.24/47,829.20 = 18,556.73/x
  3. Step 3: Cross multiply
    31,921.24x = 47,829.20 × 18,556.73
  4. Step 4: Simplify right side
    31,921.24x = 887,553,625.82
  5. Step 5: Solve for x
    x = 887,553,625.82/31,921.24
  6. Step 6: Final answer
    x = 27,804.49

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.