Home / 30,581.19-45,891.27-13,942.88

Finding the Fourth Proportional to 30,581.19, 45,891.27 and 13,942.88

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Solution

The fourth proportional to 30,581.19, 45,891.27 and 13,942.88 is: 20,923.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,581.19 : 45,891.27 = 13,942.88 : x
  2. Step 2: Convert to fraction form
    30,581.19/45,891.27 = 13,942.88/x
  3. Step 3: Cross multiply
    30,581.19x = 45,891.27 × 13,942.88
  4. Step 4: Simplify right side
    30,581.19x = 639,856,470.66
  5. Step 5: Solve for x
    x = 639,856,470.66/30,581.19
  6. Step 6: Final answer
    x = 20,923.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.