Home / 22,299.20-30,768.54-13,222.88

Finding the Fourth Proportional to 22,299.20, 30,768.54 and 13,222.88

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Solution

The fourth proportional to 22,299.20, 30,768.54 and 13,222.88 is: 18,244.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,299.20 : 30,768.54 = 13,222.88 : x
  2. Step 2: Convert to fraction form
    22,299.20/30,768.54 = 13,222.88/x
  3. Step 3: Cross multiply
    22,299.20x = 30,768.54 × 13,222.88
  4. Step 4: Simplify right side
    22,299.20x = 406,848,558.35
  5. Step 5: Solve for x
    x = 406,848,558.35/22,299.20
  6. Step 6: Final answer
    x = 18,244.99

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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.