Home / 40,028.77-55,235.86-22,120.89

Finding the Fourth Proportional to 40,028.77, 55,235.86 and 22,120.89

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Solution

The fourth proportional to 40,028.77, 55,235.86 and 22,120.89 is: 30,524.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,028.77 : 55,235.86 = 22,120.89 : x
  2. Step 2: Convert to fraction form
    40,028.77/55,235.86 = 22,120.89/x
  3. Step 3: Cross multiply
    40,028.77x = 55,235.86 × 22,120.89
  4. Step 4: Simplify right side
    40,028.77x = 1,221,866,383.12
  5. Step 5: Solve for x
    x = 1,221,866,383.12/40,028.77
  6. Step 6: Final answer
    x = 30,524.70

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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.