Home / 22,231.21-30,674.55-13,275.46

Finding the Fourth Proportional to 22,231.21, 30,674.55 and 13,275.46

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Solution

The fourth proportional to 22,231.21, 30,674.55 and 13,275.46 is: 18,317.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,231.21 : 30,674.55 = 13,275.46 : x
  2. Step 2: Convert to fraction form
    22,231.21/30,674.55 = 13,275.46/x
  3. Step 3: Cross multiply
    22,231.21x = 30,674.55 × 13,275.46
  4. Step 4: Simplify right side
    22,231.21x = 407,218,761.54
  5. Step 5: Solve for x
    x = 407,218,761.54/22,231.21
  6. Step 6: Final answer
    x = 18,317.44

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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.