Home / 39,548.78-54,577.14-21,399.44

Finding the Fourth Proportional to 39,548.78, 54,577.14 and 21,399.44

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Solution

The fourth proportional to 39,548.78, 54,577.14 and 21,399.44 is: 29,531.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,548.78 : 54,577.14 = 21,399.44 : x
  2. Step 2: Convert to fraction form
    39,548.78/54,577.14 = 21,399.44/x
  3. Step 3: Cross multiply
    39,548.78x = 54,577.14 × 21,399.44
  4. Step 4: Simplify right side
    39,548.78x = 1,167,920,232.80
  5. Step 5: Solve for x
    x = 1,167,920,232.80/39,548.78
  6. Step 6: Final answer
    x = 29,531.13

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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.