Home / 22,201.58-30,637.23-12,129.86

Finding the Fourth Proportional to 22,201.58, 30,637.23 and 12,129.86

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Solution

The fourth proportional to 22,201.58, 30,637.23 and 12,129.86 is: 16,738.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,201.58 : 30,637.23 = 12,129.86 : x
  2. Step 2: Convert to fraction form
    22,201.58/30,637.23 = 12,129.86/x
  3. Step 3: Cross multiply
    22,201.58x = 30,637.23 × 12,129.86
  4. Step 4: Simplify right side
    22,201.58x = 371,625,310.69
  5. Step 5: Solve for x
    x = 371,625,310.69/22,201.58
  6. Step 6: Final answer
    x = 16,738.69

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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.