Home / 40,122.99-55,369-22,217.94

Finding the Fourth Proportional to 40,122.99, 55,369 and 22,217.94

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Solution

The fourth proportional to 40,122.99, 55,369 and 22,217.94 is: 30,660.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,122.99 : 55,369 = 22,217.94 : x
  2. Step 2: Convert to fraction form
    40,122.99/55,369 = 22,217.94/x
  3. Step 3: Cross multiply
    40,122.99x = 55,369 × 22,217.94
  4. Step 4: Simplify right side
    40,122.99x = 1,230,185,119.86
  5. Step 5: Solve for x
    x = 1,230,185,119.86/40,122.99
  6. Step 6: Final answer
    x = 30,660.36

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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.