Home / 22,203.32-30,639.68-12,132.11

Finding the Fourth Proportional to 22,203.32, 30,639.68 and 12,132.11

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Solution

The fourth proportional to 22,203.32, 30,639.68 and 12,132.11 is: 16,741.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,203.32 : 30,639.68 = 12,132.11 : x
  2. Step 2: Convert to fraction form
    22,203.32/30,639.68 = 12,132.11/x
  3. Step 3: Cross multiply
    22,203.32x = 30,639.68 × 12,132.11
  4. Step 4: Simplify right side
    22,203.32x = 371,723,907.46
  5. Step 5: Solve for x
    x = 371,723,907.46/22,203.32
  6. Step 6: Final answer
    x = 16,741.81

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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.