Home / 22,245.27-30,695.44-13,290.87

Finding the Fourth Proportional to 22,245.27, 30,695.44 and 13,290.87

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Solution

The fourth proportional to 22,245.27, 30,695.44 and 13,290.87 is: 18,339.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,245.27 : 30,695.44 = 13,290.87 : x
  2. Step 2: Convert to fraction form
    22,245.27/30,695.44 = 13,290.87/x
  3. Step 3: Cross multiply
    22,245.27x = 30,695.44 × 13,290.87
  4. Step 4: Simplify right side
    22,245.27x = 407,969,069.41
  5. Step 5: Solve for x
    x = 407,969,069.41/22,245.27
  6. Step 6: Final answer
    x = 18,339.59

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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.