Home / 40,115.77-55,360.20-22,211.10

Finding the Fourth Proportional to 40,115.77, 55,360.20 and 22,211.10

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Solution

The fourth proportional to 40,115.77, 55,360.20 and 22,211.10 is: 30,651.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,115.77 : 55,360.20 = 22,211.10 : x
  2. Step 2: Convert to fraction form
    40,115.77/55,360.20 = 22,211.10/x
  3. Step 3: Cross multiply
    40,115.77x = 55,360.20 × 22,211.10
  4. Step 4: Simplify right side
    40,115.77x = 1,229,610,938.22
  5. Step 5: Solve for x
    x = 1,229,610,938.22/40,115.77
  6. Step 6: Final answer
    x = 30,651.56

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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.