Home / 22,216.11-30,656.11-12,143.91

Finding the Fourth Proportional to 22,216.11, 30,656.11 and 12,143.91

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Solution

The fourth proportional to 22,216.11, 30,656.11 and 12,143.91 is: 16,757.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,216.11 : 30,656.11 = 12,143.91 : x
  2. Step 2: Convert to fraction form
    22,216.11/30,656.11 = 12,143.91/x
  3. Step 3: Cross multiply
    22,216.11x = 30,656.11 × 12,143.91
  4. Step 4: Simplify right side
    22,216.11x = 372,285,040.79
  5. Step 5: Solve for x
    x = 372,285,040.79/22,216.11
  6. Step 6: Final answer
    x = 16,757.44

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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.