Home / 39,138.13-54,010.62-22,142.03

Finding the Fourth Proportional to 39,138.13, 54,010.62 and 22,142.03

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Solution

The fourth proportional to 39,138.13, 54,010.62 and 22,142.03 is: 30,556.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,138.13 : 54,010.62 = 22,142.03 : x
  2. Step 2: Convert to fraction form
    39,138.13/54,010.62 = 22,142.03/x
  3. Step 3: Cross multiply
    39,138.13x = 54,010.62 × 22,142.03
  4. Step 4: Simplify right side
    39,138.13x = 1,195,904,657.65
  5. Step 5: Solve for x
    x = 1,195,904,657.65/39,138.13
  6. Step 6: Final answer
    x = 30,556.00

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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.