Home / 22,993.11-31,730.46-13,439.57

Finding the Fourth Proportional to 22,993.11, 31,730.46 and 13,439.57

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Solution

The fourth proportional to 22,993.11, 31,730.46 and 13,439.57 is: 18,546.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,993.11 : 31,730.46 = 13,439.57 : x
  2. Step 2: Convert to fraction form
    22,993.11/31,730.46 = 13,439.57/x
  3. Step 3: Cross multiply
    22,993.11x = 31,730.46 × 13,439.57
  4. Step 4: Simplify right side
    22,993.11x = 426,443,579.65
  5. Step 5: Solve for x
    x = 426,443,579.65/22,993.11
  6. Step 6: Final answer
    x = 18,546.58

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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.