Home / 39,135.82-54,007.42-22,372.06

Finding the Fourth Proportional to 39,135.82, 54,007.42 and 22,372.06

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Solution

The fourth proportional to 39,135.82, 54,007.42 and 22,372.06 is: 30,873.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,135.82 : 54,007.42 = 22,372.06 : x
  2. Step 2: Convert to fraction form
    39,135.82/54,007.42 = 22,372.06/x
  3. Step 3: Cross multiply
    39,135.82x = 54,007.42 × 22,372.06
  4. Step 4: Simplify right side
    39,135.82x = 1,208,256,970.65
  5. Step 5: Solve for x
    x = 1,208,256,970.65/39,135.82
  6. Step 6: Final answer
    x = 30,873.43

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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.