Home / 22,360.80-30,857.28-12,289.24

Finding the Fourth Proportional to 22,360.80, 30,857.28 and 12,289.24

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Solution

The fourth proportional to 22,360.80, 30,857.28 and 12,289.24 is: 16,958.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,360.80 : 30,857.28 = 12,289.24 : x
  2. Step 2: Convert to fraction form
    22,360.80/30,857.28 = 12,289.24/x
  3. Step 3: Cross multiply
    22,360.80x = 30,857.28 × 12,289.24
  4. Step 4: Simplify right side
    22,360.80x = 379,212,519.67
  5. Step 5: Solve for x
    x = 379,212,519.67/22,360.80
  6. Step 6: Final answer
    x = 16,958.81

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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.