Home / 40,145.87-55,401.70-22,241.12

Finding the Fourth Proportional to 40,145.87, 55,401.70 and 22,241.12

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Solution

The fourth proportional to 40,145.87, 55,401.70 and 22,241.12 is: 30,692.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,145.87 : 55,401.70 = 22,241.12 : x
  2. Step 2: Convert to fraction form
    40,145.87/55,401.70 = 22,241.12/x
  3. Step 3: Cross multiply
    40,145.87x = 55,401.70 × 22,241.12
  4. Step 4: Simplify right side
    40,145.87x = 1,232,195,940.81
  5. Step 5: Solve for x
    x = 1,232,195,940.81/40,145.87
  6. Step 6: Final answer
    x = 30,692.97

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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.