Home / 39,482.96-54,487.94-21,579.16

Finding the Fourth Proportional to 39,482.96, 54,487.94 and 21,579.16

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Solution

The fourth proportional to 39,482.96, 54,487.94 and 21,579.16 is: 29,780.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,482.96 : 54,487.94 = 21,579.16 : x
  2. Step 2: Convert to fraction form
    39,482.96/54,487.94 = 21,579.16/x
  3. Step 3: Cross multiply
    39,482.96x = 54,487.94 × 21,579.16
  4. Step 4: Simplify right side
    39,482.96x = 1,175,803,975.33
  5. Step 5: Solve for x
    x = 1,175,803,975.33/39,482.96
  6. Step 6: Final answer
    x = 29,780.04

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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.