Home / 22,193.72-30,628.01-12,122.71

Finding the Fourth Proportional to 22,193.72, 30,628.01 and 12,122.71

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Solution

The fourth proportional to 22,193.72, 30,628.01 and 12,122.71 is: 16,729.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,193.72 : 30,628.01 = 12,122.71 : x
  2. Step 2: Convert to fraction form
    22,193.72/30,628.01 = 12,122.71/x
  3. Step 3: Cross multiply
    22,193.72x = 30,628.01 × 12,122.71
  4. Step 4: Simplify right side
    22,193.72x = 371,294,345.92
  5. Step 5: Solve for x
    x = 371,294,345.92/22,193.72
  6. Step 6: Final answer
    x = 16,729.70

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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.