Home / 40,162.20-55,428.96-28,668.28

Finding the Fourth Proportional to 40,162.20, 55,428.96 and 28,668.28

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Solution

The fourth proportional to 40,162.20, 55,428.96 and 28,668.28 is: 39,565.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,162.20 : 55,428.96 = 28,668.28 : x
  2. Step 2: Convert to fraction form
    40,162.20/55,428.96 = 28,668.28/x
  3. Step 3: Cross multiply
    40,162.20x = 55,428.96 × 28,668.28
  4. Step 4: Simplify right side
    40,162.20x = 1,589,052,945.39
  5. Step 5: Solve for x
    x = 1,589,052,945.39/40,162.20
  6. Step 6: Final answer
    x = 39,565.88

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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.