Home / 22,250.12-30,705.23-12,178.64

Finding the Fourth Proportional to 22,250.12, 30,705.23 and 12,178.64

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Solution

The fourth proportional to 22,250.12, 30,705.23 and 12,178.64 is: 16,806.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,250.12 : 30,705.23 = 12,178.64 : x
  2. Step 2: Convert to fraction form
    22,250.12/30,705.23 = 12,178.64/x
  3. Step 3: Cross multiply
    22,250.12x = 30,705.23 × 12,178.64
  4. Step 4: Simplify right side
    22,250.12x = 373,947,942.29
  5. Step 5: Solve for x
    x = 373,947,942.29/22,250.12
  6. Step 6: Final answer
    x = 16,806.56

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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.