Home / 43,145.50-64,624.77-20,912.37

Finding the Fourth Proportional to 43,145.50, 64,624.77 and 20,912.37

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Solution

The fourth proportional to 43,145.50, 64,624.77 and 20,912.37 is: 31,323.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,145.50 : 64,624.77 = 20,912.37 : x
  2. Step 2: Convert to fraction form
    43,145.50/64,624.77 = 20,912.37/x
  3. Step 3: Cross multiply
    43,145.50x = 64,624.77 × 20,912.37
  4. Step 4: Simplify right side
    43,145.50x = 1,351,456,778.28
  5. Step 5: Solve for x
    x = 1,351,456,778.28/43,145.50
  6. Step 6: Final answer
    x = 31,323.24

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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.