Home / 39,006.09-53,828.30-21,101.09

Finding the Fourth Proportional to 39,006.09, 53,828.30 and 21,101.09

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Solution

The fourth proportional to 39,006.09, 53,828.30 and 21,101.09 is: 29,119.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,006.09 : 53,828.30 = 21,101.09 : x
  2. Step 2: Convert to fraction form
    39,006.09/53,828.30 = 21,101.09/x
  3. Step 3: Cross multiply
    39,006.09x = 53,828.30 × 21,101.09
  4. Step 4: Simplify right side
    39,006.09x = 1,135,835,586.46
  5. Step 5: Solve for x
    x = 1,135,835,586.46/39,006.09
  6. Step 6: Final answer
    x = 29,119.44

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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.