Home / 20,722.37-31,092.75-10,859.31

Finding the Fourth Proportional to 20,722.37, 31,092.75 and 10,859.31

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Solution

The fourth proportional to 20,722.37, 31,092.75 and 10,859.31 is: 16,293.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,722.37 : 31,092.75 = 10,859.31 : x
  2. Step 2: Convert to fraction form
    20,722.37/31,092.75 = 10,859.31/x
  3. Step 3: Cross multiply
    20,722.37x = 31,092.75 × 10,859.31
  4. Step 4: Simplify right side
    20,722.37x = 337,645,811.00
  5. Step 5: Solve for x
    x = 337,645,811.00/20,722.37
  6. Step 6: Final answer
    x = 16,293.78

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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.