Home / 22,232.70-30,680.91-12,161.16

Finding the Fourth Proportional to 22,232.70, 30,680.91 and 12,161.16

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Solution

The fourth proportional to 22,232.70, 30,680.91 and 12,161.16 is: 16,782.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,232.70 : 30,680.91 = 12,161.16 : x
  2. Step 2: Convert to fraction form
    22,232.70/30,680.91 = 12,161.16/x
  3. Step 3: Cross multiply
    22,232.70x = 30,680.91 × 12,161.16
  4. Step 4: Simplify right side
    22,232.70x = 373,115,455.46
  5. Step 5: Solve for x
    x = 373,115,455.46/22,232.70
  6. Step 6: Final answer
    x = 16,782.28

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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.