Home / 39,482.82-54,487.44-21,578.58

Finding the Fourth Proportional to 39,482.82, 54,487.44 and 21,578.58

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Solution

The fourth proportional to 39,482.82, 54,487.44 and 21,578.58 is: 29,779.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,482.82 : 54,487.44 = 21,578.58 : x
  2. Step 2: Convert to fraction form
    39,482.82/54,487.44 = 21,578.58/x
  3. Step 3: Cross multiply
    39,482.82x = 54,487.44 × 21,578.58
  4. Step 4: Simplify right side
    39,482.82x = 1,175,761,583.04
  5. Step 5: Solve for x
    x = 1,175,761,583.04/39,482.82
  6. Step 6: Final answer
    x = 29,779.07

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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.