Home / 22,201.63-30,638.66-13,247.42

Finding the Fourth Proportional to 22,201.63, 30,638.66 and 13,247.42

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Solution

The fourth proportional to 22,201.63, 30,638.66 and 13,247.42 is: 18,281.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,201.63 : 30,638.66 = 13,247.42 : x
  2. Step 2: Convert to fraction form
    22,201.63/30,638.66 = 13,247.42/x
  3. Step 3: Cross multiply
    22,201.63x = 30,638.66 × 13,247.42
  4. Step 4: Simplify right side
    22,201.63x = 405,882,977.83
  5. Step 5: Solve for x
    x = 405,882,977.83/22,201.63
  6. Step 6: Final answer
    x = 18,281.68

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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.