Home / 39,141.75-54,015.62-22,375.11

Finding the Fourth Proportional to 39,141.75, 54,015.62 and 22,375.11

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Solution

The fourth proportional to 39,141.75, 54,015.62 and 22,375.11 is: 30,877.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,141.75 : 54,015.62 = 22,375.11 : x
  2. Step 2: Convert to fraction form
    39,141.75/54,015.62 = 22,375.11/x
  3. Step 3: Cross multiply
    39,141.75x = 54,015.62 × 22,375.11
  4. Step 4: Simplify right side
    39,141.75x = 1,208,605,327.34
  5. Step 5: Solve for x
    x = 1,208,605,327.34/39,141.75
  6. Step 6: Final answer
    x = 30,877.65

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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.