Home / 22,450.59-30,980.41-12,378.51

Finding the Fourth Proportional to 22,450.59, 30,980.41 and 12,378.51

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Solution

The fourth proportional to 22,450.59, 30,980.41 and 12,378.51 is: 17,081.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,450.59 : 30,980.41 = 12,378.51 : x
  2. Step 2: Convert to fraction form
    22,450.59/30,980.41 = 12,378.51/x
  3. Step 3: Cross multiply
    22,450.59x = 30,980.41 × 12,378.51
  4. Step 4: Simplify right side
    22,450.59x = 383,491,284.04
  5. Step 5: Solve for x
    x = 383,491,284.04/22,450.59
  6. Step 6: Final answer
    x = 17,081.57

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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.