Home / 31,525.92-43,500.96-18,775.20

Finding the Fourth Proportional to 31,525.92, 43,500.96 and 18,775.20

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Solution

The fourth proportional to 31,525.92, 43,500.96 and 18,775.20 is: 25,906.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,525.92 : 43,500.96 = 18,775.20 : x
  2. Step 2: Convert to fraction form
    31,525.92/43,500.96 = 18,775.20/x
  3. Step 3: Cross multiply
    31,525.92x = 43,500.96 × 18,775.20
  4. Step 4: Simplify right side
    31,525.92x = 816,739,224.19
  5. Step 5: Solve for x
    x = 816,739,224.19/31,525.92
  6. Step 6: Final answer
    x = 25,906.91

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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.