Home / 22,179.11-33,268.66-12,938.63

Finding the Fourth Proportional to 22,179.11, 33,268.66 and 12,938.63

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Solution

The fourth proportional to 22,179.11, 33,268.66 and 12,938.63 is: 19,407.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,179.11 : 33,268.66 = 12,938.63 : x
  2. Step 2: Convert to fraction form
    22,179.11/33,268.66 = 12,938.63/x
  3. Step 3: Cross multiply
    22,179.11x = 33,268.66 × 12,938.63
  4. Step 4: Simplify right side
    22,179.11x = 430,450,683.65
  5. Step 5: Solve for x
    x = 430,450,683.65/22,179.11
  6. Step 6: Final answer
    x = 19,407.94

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.