Home / 22,161.24-30,573-12,727.80

Finding the Fourth Proportional to 22,161.24, 30,573 and 12,727.80

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Solution

The fourth proportional to 22,161.24, 30,573 and 12,727.80 is: 17,558.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,161.24 : 30,573 = 12,727.80 : x
  2. Step 2: Convert to fraction form
    22,161.24/30,573 = 12,727.80/x
  3. Step 3: Cross multiply
    22,161.24x = 30,573 × 12,727.80
  4. Step 4: Simplify right side
    22,161.24x = 389,127,029.40
  5. Step 5: Solve for x
    x = 389,127,029.40/22,161.24
  6. Step 6: Final answer
    x = 17,558.90

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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.