Home / 22,133.20-30,540.36-12,699.94

Finding the Fourth Proportional to 22,133.20, 30,540.36 and 12,699.94

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Solution

The fourth proportional to 22,133.20, 30,540.36 and 12,699.94 is: 17,523.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,133.20 : 30,540.36 = 12,699.94 : x
  2. Step 2: Convert to fraction form
    22,133.20/30,540.36 = 12,699.94/x
  3. Step 3: Cross multiply
    22,133.20x = 30,540.36 × 12,699.94
  4. Step 4: Simplify right side
    22,133.20x = 387,860,739.58
  5. Step 5: Solve for x
    x = 387,860,739.58/22,133.20
  6. Step 6: Final answer
    x = 17,523.93

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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.