Home / 39,052.79-53,893.10-21,147.79

Finding the Fourth Proportional to 39,052.79, 53,893.10 and 21,147.79

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Solution

The fourth proportional to 39,052.79, 53,893.10 and 21,147.79 is: 29,184.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,052.79 : 53,893.10 = 21,147.79 : x
  2. Step 2: Convert to fraction form
    39,052.79/53,893.10 = 21,147.79/x
  3. Step 3: Cross multiply
    39,052.79x = 53,893.10 × 21,147.79
  4. Step 4: Simplify right side
    39,052.79x = 1,139,719,961.25
  5. Step 5: Solve for x
    x = 1,139,719,961.25/39,052.79
  6. Step 6: Final answer
    x = 29,184.09

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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.