Home / 32,786.54-45,245.20-18,639.38

Finding the Fourth Proportional to 32,786.54, 45,245.20 and 18,639.38

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Solution

The fourth proportional to 32,786.54, 45,245.20 and 18,639.38 is: 25,722.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,786.54 : 45,245.20 = 18,639.38 : x
  2. Step 2: Convert to fraction form
    32,786.54/45,245.20 = 18,639.38/x
  3. Step 3: Cross multiply
    32,786.54x = 45,245.20 × 18,639.38
  4. Step 4: Simplify right side
    32,786.54x = 843,342,475.98
  5. Step 5: Solve for x
    x = 843,342,475.98/32,786.54
  6. Step 6: Final answer
    x = 25,722.22

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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.