Home / 40,325.82-55,648.68-22,420.78

Finding the Fourth Proportional to 40,325.82, 55,648.68 and 22,420.78

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Solution

The fourth proportional to 40,325.82, 55,648.68 and 22,420.78 is: 30,940.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,325.82 : 55,648.68 = 22,420.78 : x
  2. Step 2: Convert to fraction form
    40,325.82/55,648.68 = 22,420.78/x
  3. Step 3: Cross multiply
    40,325.82x = 55,648.68 × 22,420.78
  4. Step 4: Simplify right side
    40,325.82x = 1,247,686,811.57
  5. Step 5: Solve for x
    x = 1,247,686,811.57/40,325.82
  6. Step 6: Final answer
    x = 30,940.15

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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.