Home / 40,122.74-55,369.35-22,217.75

Finding the Fourth Proportional to 40,122.74, 55,369.35 and 22,217.75

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Solution

The fourth proportional to 40,122.74, 55,369.35 and 22,217.75 is: 30,660.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,122.74 : 55,369.35 = 22,217.75 : x
  2. Step 2: Convert to fraction form
    40,122.74/55,369.35 = 22,217.75/x
  3. Step 3: Cross multiply
    40,122.74x = 55,369.35 × 22,217.75
  4. Step 4: Simplify right side
    40,122.74x = 1,230,182,099.12
  5. Step 5: Solve for x
    x = 1,230,182,099.12/40,122.74
  6. Step 6: Final answer
    x = 30,660.47

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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.