Home / 39,135.86-54,003.92-22,141.65

Finding the Fourth Proportional to 39,135.86, 54,003.92 and 22,141.65

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Solution

The fourth proportional to 39,135.86, 54,003.92 and 22,141.65 is: 30,553.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,135.86 : 54,003.92 = 22,141.65 : x
  2. Step 2: Convert to fraction form
    39,135.86/54,003.92 = 22,141.65/x
  3. Step 3: Cross multiply
    39,135.86x = 54,003.92 × 22,141.65
  4. Step 4: Simplify right side
    39,135.86x = 1,195,735,987.07
  5. Step 5: Solve for x
    x = 1,195,735,987.07/39,135.86
  6. Step 6: Final answer
    x = 30,553.46

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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.