Home / 22,218.42-30,609.30-15,491.82

Finding the Fourth Proportional to 22,218.42, 30,609.30 and 15,491.82

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Solution

The fourth proportional to 22,218.42, 30,609.30 and 15,491.82 is: 21,342.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,218.42 : 30,609.30 = 15,491.82 : x
  2. Step 2: Convert to fraction form
    22,218.42/30,609.30 = 15,491.82/x
  3. Step 3: Cross multiply
    22,218.42x = 30,609.30 × 15,491.82
  4. Step 4: Simplify right side
    22,218.42x = 474,193,765.93
  5. Step 5: Solve for x
    x = 474,193,765.93/22,218.42
  6. Step 6: Final answer
    x = 21,342.37

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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.