Home / 40,111.46-55,354.25-22,206.78

Finding the Fourth Proportional to 40,111.46, 55,354.25 and 22,206.78

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Solution

The fourth proportional to 40,111.46, 55,354.25 and 22,206.78 is: 30,645.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,111.46 : 55,354.25 = 22,206.78 : x
  2. Step 2: Convert to fraction form
    40,111.46/55,354.25 = 22,206.78/x
  3. Step 3: Cross multiply
    40,111.46x = 55,354.25 × 22,206.78
  4. Step 4: Simplify right side
    40,111.46x = 1,229,239,651.82
  5. Step 5: Solve for x
    x = 1,229,239,651.82/40,111.46
  6. Step 6: Final answer
    x = 30,645.60

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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.