Home / 22,357.11-30,853.59-12,286.47

Finding the Fourth Proportional to 22,357.11, 30,853.59 and 12,286.47

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Solution

The fourth proportional to 22,357.11, 30,853.59 and 12,286.47 is: 16,955.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,357.11 : 30,853.59 = 12,286.47 : x
  2. Step 2: Convert to fraction form
    22,357.11/30,853.59 = 12,286.47/x
  3. Step 3: Cross multiply
    22,357.11x = 30,853.59 × 12,286.47
  4. Step 4: Simplify right side
    22,357.11x = 379,081,707.93
  5. Step 5: Solve for x
    x = 379,081,707.93/22,357.11
  6. Step 6: Final answer
    x = 16,955.76

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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.