Home / 39,027.05-53,857.23-21,122.06

Finding the Fourth Proportional to 39,027.05, 53,857.23 and 21,122.06

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Solution

The fourth proportional to 39,027.05, 53,857.23 and 21,122.06 is: 29,148.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,027.05 : 53,857.23 = 21,122.06 : x
  2. Step 2: Convert to fraction form
    39,027.05/53,857.23 = 21,122.06/x
  3. Step 3: Cross multiply
    39,027.05x = 53,857.23 × 21,122.06
  4. Step 4: Simplify right side
    39,027.05x = 1,137,575,698.93
  5. Step 5: Solve for x
    x = 1,137,575,698.93/39,027.05
  6. Step 6: Final answer
    x = 29,148.39

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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.