Home / 39,071.03-53,917.94-21,166.49

Finding the Fourth Proportional to 39,071.03, 53,917.94 and 21,166.49

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Solution

The fourth proportional to 39,071.03, 53,917.94 and 21,166.49 is: 29,209.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,071.03 : 53,917.94 = 21,166.49 : x
  2. Step 2: Convert to fraction form
    39,071.03/53,917.94 = 21,166.49/x
  3. Step 3: Cross multiply
    39,071.03x = 53,917.94 × 21,166.49
  4. Step 4: Simplify right side
    39,071.03x = 1,141,253,162.41
  5. Step 5: Solve for x
    x = 1,141,253,162.41/39,071.03
  6. Step 6: Final answer
    x = 29,209.71

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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.