Home / 40,184.10-55,455.75-22,278.78

Finding the Fourth Proportional to 40,184.10, 55,455.75 and 22,278.78

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Solution

The fourth proportional to 40,184.10, 55,455.75 and 22,278.78 is: 30,745.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,184.10 : 55,455.75 = 22,278.78 : x
  2. Step 2: Convert to fraction form
    40,184.10/55,455.75 = 22,278.78/x
  3. Step 3: Cross multiply
    40,184.10x = 55,455.75 × 22,278.78
  4. Step 4: Simplify right side
    40,184.10x = 1,235,486,453.99
  5. Step 5: Solve for x
    x = 1,235,486,453.99/40,184.10
  6. Step 6: Final answer
    x = 30,745.65

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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.