Home / 39,686.70-54,767.41-21,537.03

Finding the Fourth Proportional to 39,686.70, 54,767.41 and 21,537.03

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Solution

The fourth proportional to 39,686.70, 54,767.41 and 21,537.03 is: 29,720.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,686.70 : 54,767.41 = 21,537.03 : x
  2. Step 2: Convert to fraction form
    39,686.70/54,767.41 = 21,537.03/x
  3. Step 3: Cross multiply
    39,686.70x = 54,767.41 × 21,537.03
  4. Step 4: Simplify right side
    39,686.70x = 1,179,527,352.19
  5. Step 5: Solve for x
    x = 1,179,527,352.19/39,686.70
  6. Step 6: Final answer
    x = 29,720.97

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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.