Home / 31,525.48-43,500.24-20,205.16

Finding the Fourth Proportional to 31,525.48, 43,500.24 and 20,205.16

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Solution

The fourth proportional to 31,525.48, 43,500.24 and 20,205.16 is: 27,879.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,525.48 : 43,500.24 = 20,205.16 : x
  2. Step 2: Convert to fraction form
    31,525.48/43,500.24 = 20,205.16/x
  3. Step 3: Cross multiply
    31,525.48x = 43,500.24 × 20,205.16
  4. Step 4: Simplify right side
    31,525.48x = 878,929,309.24
  5. Step 5: Solve for x
    x = 878,929,309.24/31,525.48
  6. Step 6: Final answer
    x = 27,879.97

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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.