Home / 22,357.03-30,853.20-12,286.09

Finding the Fourth Proportional to 22,357.03, 30,853.20 and 12,286.09

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Solution

The fourth proportional to 22,357.03, 30,853.20 and 12,286.09 is: 16,955.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,357.03 : 30,853.20 = 12,286.09 : x
  2. Step 2: Convert to fraction form
    22,357.03/30,853.20 = 12,286.09/x
  3. Step 3: Cross multiply
    22,357.03x = 30,853.20 × 12,286.09
  4. Step 4: Simplify right side
    22,357.03x = 379,065,191.99
  5. Step 5: Solve for x
    x = 379,065,191.99/22,357.03
  6. Step 6: Final answer
    x = 16,955.08

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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.